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America's Real Criminal Element: Lead

2muchcoffeeman writes "The cause of the great increase in violent crime that started in the 1960s and peaked in the 1990s may have been isolated: lead. This leads directly to the reason for the sharp decline in violent crime since then: lead abatement programs and especially the ban of tetraethyl lead as an anti-knock agent in gasoline starting in 1996. There are three reasons why this makes sense. First, the statistics correlate almost perfectly. Second, it holds true worldwide with no exceptions. Every country studied has shown this same strong correlation between leaded gasoline and violent crime rates. Third, the chemistry and neuroscience of lead gives us good reason to believe the connection. Decades of research has shown that lead poisoning causes significant and probably irreversible damage to the brain. Not only does lead degrade cognitive abilities and lower intelligence, it also degrades a person's ability to make decisions by damaging areas of the brain responsible for emotional regulation, impulse control, attention, verbal reasoning, and mental flexibility. Another thing that stands out: if you overlay a map showing areas with higher incidence of violent crime with one showing lead contamination, there's a strikingly high correlation."

56 of 627 comments (clear)

  1. False Lead by James+McGuigan · · Score: 5, Funny

    False Lead

    1. Re:False Lead by tnk1 · · Score: 5, Funny

      Good idea. We wouldn't want bullets to have any long lasting health effects.

    2. Re:False Lead by BeaverCleaver · · Score: 4, Informative

      It can become a huge problem, particularly for shotgun pellets, which by their nature are scattered indiscriminately. If you shoot a duck, maybe two pellets kill the duck, and the other hundred go directly into the waterways, and therefore the food chain. Not cool. I believe steel shot is presently being encouraged to improve this?

    3. Re:False Lead by stuporglue · · Score: 4, Informative

      Lead-free shot is required at least in Wetlands Managed Areas in Minnesota.

      --
      https://www.facebook.com/digitizeicm -- Show your support for the digitization of the Iron County Miner newspaper archiv
  2. Roman Empire by geoffrobinson · · Score: 5, Informative

    And didn't help lead to the downfall of Rome as well? I believe they had a lot of lead in their wine containers.

    --
    Except for ending slavery, the Nazis, communism, & securing American independence, war has never solved anything.
    1. Re:Roman Empire by pwizard2 · · Score: 5, Informative

      Lead(II) Acetate was actually used as a sweetening agent. They also had lots of lead water mains too. The Romans were highly advanced for the time, but the massive quantities of lead the average Roman was exposed to certainly didn't help matters.

      --
      "It is a denial of justice not to stretch out a helping hand to the fallen; that is the common right of humanity."
    2. Re:Roman Empire by Joce640k · · Score: 4, Informative

      And didn't help lead to the downfall of Rome as well? I believe they had a lot of lead in their wine containers.

      That is one of the theories, yes.

      --
      No sig today...
    3. Re:Roman Empire by K.+S.+Kyosuke · · Score: 4, Funny

      And didn't help lead to the downfall of Rome as well? I believe they had a lot of lead in their wine containers.

      They had a lot of lead in their plumbing. (Which is a nice pun for the classically educated. ;-))

      --
      Ezekiel 23:20
    4. Re:Roman Empire by Anonymous Coward · · Score: 5, Insightful

      Or, were they so much more advanced than the rest of the world because they drank so much lead?

    5. Re:Roman Empire by Dynedain · · Score: 4, Informative

      It's not a pun. That's the Latin origin of the word.

      --
      I'm out of my mind right now, but feel free to leave a message.....
    6. Re:Roman Empire by pwizard2 · · Score: 5, Informative

      The Romans were advanced. They had indoor plumbing, flush toilets (of a sort) and aquaducts that could transport water for hundreds of miles (most stretches of the aquaducts were enclosed in water mains similar to what we have today) The Romans were capable of performing complicated surgery/repair (much like the new-world cultures) and Roman public baths and enclosed sewage systems helped to maintain public health in crowded urban areas. When the legions were not fighting, they could build nearly any type of infrastructure. Roman roads and bridges have lasted for over 2000 years and are still usable today. That is very impressive considering that the parts of Europe not colonized by the Greeks or Romans were still in the tribal stage of civilization at the time.

      --
      "It is a denial of justice not to stretch out a helping hand to the fallen; that is the common right of humanity."
    7. Re:Roman Empire by stymy · · Score: 4, Insightful

      My house has lead plumbing. As do many places, like Buenos Aires, Argentina. Generally, as long as the water does not stagnate in lead pipes, the concentration is too low to be harmful. So, when I return from a vacation or something, I just need to let the water run for a few minutes. Of far more concern would be Roman mens' use of lead combs to blacken their hair.

    8. Re: Roman Empire by vlm · · Score: 4, Interesting

      Weren't the Romans unable to conquer germanic tribal 'barbarians'? If I recall correctly that wasn't for lack of trying.

      Read ur Gibbon etc...

      The romans were geniuses at "doin stuff" with coasties. They knew exactly what to do with coastie farmers and merchants in warmish climates. Oh boy did they ever, they built a whole empire out of them. They had no idea what to do with forest dwellers and prairie horse riders. at all. Like a cultural blindspot.
      The german campaigns were rome's Vietnam. Well either that or the isle of brittania. They never lost a battle (well, with one isolated very famous incident in the Tuetenberg forest), at least until centuries later in the demographic collapse when they were hopelessly outnumbered. They always lost the war, (almost) never lost a battle. And every time they won, they looked at their hard fought land, said WTF and went back home, until they had to do it all over.

      Every generation or so for centuries it was something like:
      "Look guys, we've won ourselves some trees"
      "Oh? Olive trees? No?"
      "Well WTF are we suppose to do with them? F it lets go back across the Rhine to civilization."

      As for the horsemen thing they never really figured out what to do with the Parthian empire either, as I recall Hadrian simply gave up conquered horsemen land. Yeah the rich romans had horses, they had no idea what to do with cultures where everyone was a horseman.

      They've got a well deserved rep as master administrators... of warm coasties. They were a belly laugh as administrators of forest dwellers and horsemen cultures.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    9. Re:Roman Empire by Anonymous Coward · · Score: 5, Funny

      Well, apart from the indoor plumbing, flush toilets, aquaducts, surgery, repair, public baths, enclosed sewage systems, roads and bridges, what have the Romans ever done for us?

    10. Re: Roman Empire by alexander_686 · · Score: 5, Interesting

      One of the best explanations of this I have heard comes from John Keegan. Basically, Rome was able to conquer settled, agriculture lands. There was enough civilization that Rome could coopt the local government to extract taxes to build roads, raise armies etc. With its forests Germany did not have the large densely populated settled areas that Rome needed for success.

      Scotland with it’s cattle headers and it’s a different story. Each clan it’s own. Most of the wealth is on hoof – so it disappears into the wilderness. Less impressed with roads because cattle don’t need roads. Etc. Rome gave up and built a wall.

    11. Re:Roman Empire by avandesande · · Score: 4, Informative

      Here is one study claiming that this is false based on bone samples.... http://www.poweredbyosteons.org/2012/01/lead-poisoning-in-rome-skeletal.html

      --
      love is just extroverted narcissism
    12. Re: Roman Empire by Sir_Eptishous · · Score: 4, Informative

      As soon as I saw this was an article on Lead I knew it would turn into a "Did Rome Fall because of Lead" discussion.

      I disagree with your simplistic analysis of Roman Imperialistic effectiveness: "warm coasties".

      Lets see? What was Gaul when Caesar conquered it. His own histories, as well as Gibbon, et al, indicates there was much forested areas. The same goes with conquering the Dacian tribes, and the Dalmatian provinces. Those were heavily forested, yet closer to Rome. When Augustus conquered the Germans all the way up to the Elbe, the reality was, it wasn't really economically feasible to maintain those areas once all the slaves had been "monetized". As you say, it was nothing but trees...

      The failure at Teutoburg came in a big part from Arminius subterfuge, and once the damage was done The Senate wasn't too keen on spending the money to subdue a region with little economic value, unlike the "warm coastie" regions with much higher economic value.

      Regarding Roman problems dealing with the Persian cavalry, that would be more of a military tactical issue, where The Romans didn't really have an effective method for defeating units who could fire ranged weapons from afar, as the Roman Military was much more effective at close combat.

      --
      We play the game with the bravery of being out of range
    13. Re:Roman Empire by TsuruchiBrian · · Score: 5, Interesting

      Apparently the romans were not poisoned by lead...

      From wikipedia:

      "The great disadvantage of lead has always been that it is poisonous. This was fully recognised by the ancients, and Vitruvius specifically warns against its use. Because it was nevertheless used in profusion for carrying drinking water, the conclusion has often been drawn that the Romans must therefore have suffered from lead poisoning; sometimes conclusions are carried even further and it is inferred that this caused infertility and other unwelcome conditions, and that lead plumbing was largely responsible for the decline and fall of Rome. In fact, two things make this otherwise attractive hypothesis impossible. First, the calcium carbonate deposit that formed so thickly inside the aqueduct channels also formed inside the pipes, effectively insulating the water from the lead, so that the two never touched. Second, because the Romans had so few taps and the water was constantly running, it was never actually inside the pipes for more than a few minutes, and certainly not long enough to become contaminated. The thesis that the Romans contracted lead poisoning from the lead pipes in their water systems must therefore be declared completely unfounded."

    14. Re:Roman Empire by K.+S.+Kyosuke · · Score: 4, Informative

      It's not a pun. That's the Latin origin of the word.

      I know, that's why I wrote it. But how does that make it not-a-pun?

      UPDATE: After carefully checking with a few dictionaries, it appears that the designatum of the English "pun" is strictly narrower that the common translation of "pun" in my native tongue, which means more like "word play", with the narrow sense of "pun" being represented with a transliteration of the French word "calembour". It just shows that you learn a new thing every day!

      --
      Ezekiel 23:20
    15. Re:Roman Empire by Sique · · Score: 4, Insightful

      The Romans were advanced. They had indoor plumbing, flush toilets (of a sort) and aquaducts that could transport water for hundreds of miles (most stretches of the aquaducts were enclosed in water mains similar to what we have today)

      You know why we call this "plumbing"? Because it was done with plumbum, the latin word for lead.

      --
      .sig: Sique *sigh*
  3. Freakonomics? by lysdexia · · Score: 4, Funny
    1. Re:Freakonomics? by icebike · · Score: 4, Interesting

      I would love to hear a scientific (not political) discussion of how they screwed up.

      Well, one could start by looking into the seemingly disproportional effect lead would have to have on males vs females if their theory were to hold any water.

      The offending rates for females declined since the early 1980's but stabilized after 1999. Offending rates for males peaked in the early 1990's, fell to record lows,and stabilized in recent years. Female murder rates show no characteristic peaks related to the peak exposure to lead.

      Chart Here.
      Data here.

      --
      Sig Battery depleted. Reverting to safe mode.
    2. Re:Freakonomics? by Man+On+Pink+Corner · · Score: 5, Insightful

      Gun control mitigates the damage criminals do, and significantly raises the difficulty of getting enraged and killing someone with a particularly lethal weapon at hand.

      Not really. You could kill more people with a gallon of gasoline and a couple of bike locks than I could with all the guns I could carry.

      The worst mass murders have always been committed by means other than guns, even in the US. Most such killings are committed with guns but there is no reason to think the perpetrators wouldn't just move on to the next most convenient methodology if they couldn't obtain firearms.

      The UK and germany for example have much higher violent crime rates than the US (and a lot of that is stabbings, and football hooliganism), but much lower murder rates because criminals in those places try and stab rather than shoot.

      One huge problem with that old canard is the correlation between firearm murder rates and firearms regulations in various areas of the US. Areas with more guns in the hands of more law-abiding citizens have less crime, not more. If you're worried about being killed with a gun, the last place you want to live in the US is an area like DC or Chicago with strict gun control laws.

      You can mutter about post-hoc fallacies and correlation not implying causation, but the reality is that gun-control proponents have very few statistics they can cite to advance their cause, and a lot of statistics they don't dare cite.

      Ultimately it's very hard to separate cultural effects from the effects of firearms availability. This is true both within the US and between different nations as a whole. I won't go too far down that path because I don't have time to defend myself against accusations of bias and worse, but I will say that as a middle-aged male in an economically well off, culturally-homogenous area, any gun control measures that affect what weapons I can own are not going to make you any safer.

    3. Re:Freakonomics? by ScentCone · · Score: 4, Insightful

      and significantly raises the difficulty of getting enraged and killing someone

      And so we have another legislative push to curtail "assault" rifles. Except ... even the FBI points out that far more people are killed with hammers, and with bare hands than with rifles. It's about murderers, not tools. Guns are harder to get now than they were 50 years ago - so what's changed? Culture.

      If you're right, and more control means less murder, how do you explain the recent relaxation of gun control in Washington DC, and the substantial drop in murder with guns? How do you reconcile that with very restrictive gun control in Chicago, and a very, very high murder rate? It's about people, not gun (or hammer) control.

      --
      Don't disappoint your bird dog. Go to the range.
  4. so... by Nkwe · · Score: 5, Funny

    If you don't fill someone full of lead, they don't fill someone else full of lead?

  5. That settles it then by Andrio · · Score: 5, Funny

    I'm throwing this damned mechanical pencil away.

    --
    The Internet King? I wonder if he could provide faster nudity.
  6. Re:Another possibility by X0563511 · · Score: 4, Informative

    You know, except for the whole fact that we know lead sequestering directly affects mental function in ways that cause the individual to become more violent.

    --
    For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
  7. Re:lead concentration = poverty by Anonymous Coward · · Score: 5, Insightful

    its not lead its the upbringing of people out of poverty

    Except that the rise in the standard of living of the poor does not match the decline in crime.

  8. Re:lead concentration = poverty by Dunbal · · Score: 4, Interesting

    Yup. If the study were true, China would be one of the most violent countries on Earth. Rich people can afford better products, ie, products with less led in them. Rich people have other, non-violent, ways of stealing large sums of money. I personally believe that the arrival of the internet, cheap entertainment be it games or porn, and easy access to information, has kept people busy at night. And porn and possibly less stressful masturbation has helped release a lot of pent up sexual energy.

    --
    Seven puppies were harmed during the making of this post.
  9. Re:lead concentration = poverty by vlm · · Score: 4, Interesting

    Not to mention the spectacular semi-permanent decline in the economy since 2007 has not resulted in a permanent spectacular increase in crime.

    --
    "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
  10. Re:Another possibility by Rob+the+Bold · · Score: 5, Funny

    I only consume unleaded ice cream. Am I still susceptible?

    Depends if it's fluoridated or not. There's a reason I only drink rain water and grain alcohol, you know.

    --
    I am not a crackpot.
  11. Re:lead concentration = poverty by Anonymous Coward · · Score: 5, Interesting

    That's dumb. Poor people from the early 80's might not have had X-boxes, but they did have video games (Atari, Intellivision and Odyssey systems spring to mind, not to mention arcade games which were just taking off). Plus (and this applies even if you go back before the 80's) there was still TV, books, magazines, radio, and so on. Sorry, but 20th-century crime rates can't be blamed on a lack of entertainment options for the poor. At least not by anyone who 1)is being honest and 2)knows what the fuck they're talking about.

  12. Re:Correlation, Causation, blah blah by Anonymous Coward · · Score: 5, Informative

    Except it isn't just simple time correlation. There is also spatial correlation (areas with different lead contamination, different countries) and for individuals there is causal link between lead poisoning these behavioural problems.

  13. Re:Another chance for criminals to blame someone e by awkScooby · · Score: 4, Funny

    You'll find slackers in most every group of people...

  14. Re:lead concentration = poverty by zeidrich · · Score: 5, Insightful

    Nobody in a right state of mind is going to rob or kill a random someone just because they're bored.

    However, lead poisoning causes brain damage, which can lead to psychosis. And the study shows correlation between violent crime rates and lead concentration.

    If it were just a matter of being bored, I would fear for the world. That would imply that we're all rapists and murderers, and that unless we're significantly distracted by our 'stuff' we're prone to rape and murder out of sheer boredom. That's not really the case though. For the most part, people don't rape and murder eachother, except under pretty significant mental distress or disorder.

    A study like this is useful because it might bring up other ways of investigating criminal trends. Could there be something environmental that causes mental health issues in a population? Drug/alcohol abuse? Lack of health care opportunities? Birth defects caused by some environmental source? Toxins from some environmental source?

    Dismissing it as "people just have more x-boxes so they probably don't get bored and kill people" is pretty pointless. Does poverty factor into it? Maybe. But can we tell if poverty instigates the crime, or if the mental degradation caused by something like lead poisoning (or drug/alcohol abuse, or mental deficiency from birth) both instigates the crime and makes the person have a more difficult time caring for themselves leading to a life of poverty?

    That's not even to say that bringing people out of poverty doesn't help the situation. It has a mental effect (reducing stress by making available necessities). But why weren't those people in Central Park just happy to play chess? It's not just that they had nothing better to do, it's more likely that they had a problem that went ignored.

  15. Re:Correlation, Causation, blah blah by sjames · · Score: 5, Informative

    Except we do know very well that lead exposure at a young age DOES result in poor impulse control, lower IQ, and a greater tendency towards violence.

  16. Re:Correlation, Causation, blah blah by clawhound · · Score: 5, Informative

    Did you read the actual article? He address those topics precisely. He waited to publish this article until he had a stack of corroborating studies using different methodologies. One study is nothing. Many different studies of many different places, and each one maps well? That's a whole heaping mound of coincidence.

  17. Re:Correlation, Causation, blah blah by Ultra64 · · Score: 5, Funny

    http://xkcd.com/552/

    Correlation doesn't imply causation, but it does waggle its eyebrows suggestively and gesture furtively while mouthing 'look over there'.

  18. Re:Correlation, Causation, blah blah by Anonymous Coward · · Score: 5, Insightful

    Did you read the linked article in full? They have more than a simple correlation. They have multiple correlations cross-culturally, and at every level of analysis examined, national, state and neighborhood. It's also backed up by the neurobiological research about the effects of even small quantities of lead on the brain.

    Yes, it is correct to be skeptical of claims of causation from correlational data. That's what additional research is for to check for other possible causes is for. That additional research has all supported the claim of causation, to a far higher degree than any other claimed cause.

    Skepticism simply for the sake of skepticism is not a virtue. If you demand a high standard of proof, it behooves you to be ready to accept the claims of those who actually manage to meet that standard of proof.

  19. Re:Correlation, Causation, blah blah by HornWumpus · · Score: 5, Insightful

    You're kidding? Is this the first time you've read Mother Jones?

    --
    John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
  20. Re:Another chance for criminals to blame someone e by Anonymous Coward · · Score: 4, Informative

    RTFA:

    Mother Jones writer Kevin Drum wrote that obviously the millions of children who were exposed to high levels of lead didn't all become criminals, but he notes that those on the margin may have been "pushed over the edge from being merely slow or disruptive to becoming part of a nationwide epidemic of violent crime."

  21. Re:Another chance for criminals to blame someone e by PhotoJim · · Score: 4, Insightful

    So just because you didn't become a criminal, means there can't be a correlation?

    You're a sample of one. Your experiences, while important to you, mean nothing in isolation when it comes to statistics.

    If one person in a hundred were to die a year in car crashes, and we changed cars to have different tires and suddenly ten people died a year, but you lived, that doesn't mean that the death rate didn't go up 1000%. You were just lucky and lived.

    The article quite succinctly discusses how lead might take borderline violent people and trigger their latent violence. It's an interesting article. It seems you weren't a borderline violent person. Yay for you!

  22. Re:Another chance for criminals to blame someone e by sjames · · Score: 4, Interesting

    The uncomfortable truth is that there is very real evidence that society poisoned those people and THEN punished them for the natural consequences of that poisoning.

    We're talking about data here (not the plural of anecdote) and it is statistical, not 1to1.

    Before you try to make something out of the statistical nature, note well that radioactive decay is statistical in the same way.

    I predict that this will be almost entirely ignored because it IS an uncomfortable truth, it presents a non-punitive measure to fight crime that doesn't fund the police, it suggests a level of liability against GM and the oil companies that they could NEVER pay off (and worse, much of the money is due to poor people) and finally, it significantly shrinks the pool of people that others can feel morally superior to while dumping on them.

  23. Re:Another possibility by joss · · Score: 4, Funny

    > There's a reason I only drink rain water and grain alcohol, you know.

    You're a hick ?

    --
    http://rareformnewmedia.com/
  24. Re:Another possibility by shaitand · · Score: 5, Funny

    Except you've made a leap transforming beers to hammers. Your premise do not actually support your argument (which is obviously intentional) and you suggest it is similar his argument and then proceed to beat that strawman down. You follow up with a false dichotomy suggesting that either your argument is valid or his cannot be valid.

    The problem is that his argument is supported by his premise where yours is not.

    is leap is that lead is proven to cause people to become violent, therefore it is reasonable that the documented decline in known sources of lead poisoning could be related to a reduction in violence. This logically follows and his premise is supported.

    Bullets are known to cause death. Therefore it is reasonable to suggest that the bullets I'm firing into the crowd might be responsible for the dead people in the crowd.

    Cannabis is known to get you high. Therefore it is reasonable to suggest that the marijuana found in the stoned teenagers posession might have been what he used to get high.

    Now lets try yours:

    Bullets cause death. Knives cause death. Therefore bullets are made of knives.
    Cats have claws. Dogs have claws. Therefore dogs are made of cats.

  25. Re:Some real lead haters out there. by KillaBeave · · Score: 5, Funny

    What a crock of sh*t! I grew up around lead, lead pipes in the house, lead paint, lead-acid batteries, etc. I haven't tried to kill anyone, and last I knew, I had a very high IQ (well, at least in HS, many, many years ago anyway), so this study is BS! We need lead in every day life. We need lead in solder, batteries, electronics, weights, etc. Lead is a very important metal, we can not do without it.

    I am so sick of these environmentalist freaks, so sick.

    So sick you wish to do them violent harm perhaps? :)

  26. Re:lead concentration = poverty by HornWumpus · · Score: 4, Interesting

    There was lead in paint for two reasons. Pigment and anti-fungal.

    White lead paint was fairly high in lead and was pretty bad for kids that ate it. All the other colors only had a trace for it's anti-fungal properties. Initially they replaced the anti-fungal lead with mercury, not sure if that's still true. There was an argument for removing the lead pigment but leaving the traces.

    --
    John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
  27. Re:Another possibility by demonlapin · · Score: 4, Funny

    Whoosh...

  28. Re:lead concentration = poverty by ChrisMaple · · Score: 4, Informative

    Wikipedia: Lead paint or lead-based paint is paint containing lead, as pigment, with lead(II) chromate (PbCrO4, "chrome yellow") and lead(II) carbonate (PbCO3, "white lead") being the most common. Lead is added to paint to speed up drying, increase durability, maintain a fresh appearance, and resist moisture that causes corrosion.

    Also, as might be expected by those who have handled tin-lead solder, lead is soft and flexible. This helps lead paint adhere for a long time on surfaces with differing thermal coefficients of expansion.

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  29. Re:lead concentration = poverty by Dastardly · · Score: 4, Insightful

    But, if you subdivide across multiple countries, states, and cities where the lead in gasoline was phased out at different times and the 22 year correlation remains consistent, it becomes highly unlikely that you will find something(s) else that can account for the change.

    And, as you said it is statistical because clearly every child exposed to lead during those time periods did not become a criminal. Some just suffered from losing a few IQ points (or whatever intelligence measure you care to use). But, you take a large group of people that have all the other risks for becoming criminals and add lead on top of that and you get a significant rise in crime.

  30. Nope, coding error by l00sr · · Score: 4, Informative

    Donohue and Levitt botched the study: a programming bug meant they failed to control for things they thought they were controlling for. Furthermore, they accidentally predicted the total number of arrests instead of the arrest rate, as they should have.

  31. Re:lead concentration = poverty by dcollins · · Score: 5, Insightful

    False. "Wilding" in general, and that famous NYC case, were totally fictitious bullshit made up by wild-eyed media and cops. The convictions of the juveniles were overturned years later, when a single man confessed and also had DNA evidence confirm it. Ken Burns had a documentary on their story at Cannes just last year. Exemplary case study of the great fraud that is our law-enforcement and security apparatus.

    http://en.wikipedia.org/wiki/Central_Park_Jogger_case

    --
    We know where leadership by an anti-intellectual "strongman" who scapegoats minorities and likes boisterous rallies goes
  32. Re:lead concentration = poverty by Immerman · · Score: 4, Informative

    Except that the neurological effects of lead poisoning are well known, and include lower IQ, increased aggressiveness, and poor impulse control - practically a recipe for making someone more inclined to commit criminal acts. And if you read the article you'll see that several different studies show the same correlation:
    1) National crime rates rose and fell with a high correlation to the rise and fall of leaded gasoline 23 years earlier
    2) Individual states phased out leaded gasoline at different rates - their crime rates likewise fell at correlated rates
    3) A study of other nations shows that Australia, Canada, Great Britain, Finland, France, Italy, New Zealand, and West Germany (all those named in the article) all show the same high correlation between crime rates and their own leaded gasoline use and phase-out, with not one nation studied failing to show it.
    4) Studies of ongoing effects show that cities (and even neighborhods, in the case of New Orleans where the data was available) with high lead contamination correlate extremely well with high-crime areas, even when neighborhoods have been long since gentrified.

    That many studies all seeing an extremely close correlation suggests that there is almost certainly something to it.

    --
    --- Most topics have many sides worth arguing, allow me to take one opposite you.
  33. Re:I'll Take Abortion for 1000, Flaimbait by shutdown+-p+now · · Score: 5, Insightful

    However, there statistics are far from a perfect match. If it were, we would have reverted back to pre 1950's crime levels. We haven't, we're not really even close.

    Because all the lead that has accumulated from burning leaded gasoline while it was widespread has just magically disappeared away?

    This group seems to believe that just because "the statistics correlate almost perfectly" that they have a cause.

    They happen to believe that they have a cause because they have came up with a simple rule of correlation based on two data sets, and then went on to see if it applies to a dozen different unrelated ones (matching the dates of introduction of leaded gasoline and the ban on it in various countries across the globe) - and they found that the correlation still holds in all cases that they've measured so far. In other words, they've made a prediction, and found that it matches the facts. That's hard science.

  34. Re:Another chance for criminals to blame someone e by DeadCatX2 · · Score: 5, Interesting

    Or perhaps the simpler explanation is that the specific risks and effects of TEL were unknown at the time.

    The specific risks and effects of TEL were known as early as 1923, when the inventor took a prolonged vacation to cure lead poisoning. Here are excerpts from the wikipedia article for Thomas Midgley, Jr. http://en.wikipedia.org/wiki/Thomas_Midgley,_Jr.

    [...] In December 1921, while working under the direction of Kettering at Dayton Research Laboratories, a subsidiary of General Motors, Midgley discovered that the addition of TEL to gasoline prevented "knocking" in internal combustion engines.

    [...] In 1923, Midgley took a prolonged vacation to cure himself of lead poisoning. "After about a year's work in organic lead," he wrote in January 1923, "I find that my lungs have been affected and that it is necessary to drop all work and get a large supply of fresh air." He went to Miami, Florida for convalescence.

    [...] However, after two deaths and several cases of lead poisoning at the TEL prototype plant in Dayton, Ohio, the staff at Dayton was said in 1924 to be "depressed to the point of considering giving up the whole tetraethyl lead program." Over the course of the next year, eight more people would die at DuPont's Deepwater, New Jersey plant.

    [...] On October 30, 1924, Midgley participated in a press conference to demonstrate the apparent safety of TEL. In this demonstration, he poured TEL over his hands, then placed a bottle of the chemical under his nose and inhaled its vapor for sixty seconds, declaring that he could do this every day without succumbing to any problems whatsoever. However, the State of New Jersey ordered the Bayway plant to be closed a few days later, and Jersey Standard was forbidden to manufacture TEL there again without state permission. Midgley himself was careful to avoid mentioning to the press that he required nearly a year to recover from the lead poisoning brought on by his demonstration at the press conference.

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  35. Goes back to where it came from - The ground by Taco+Cowboy · · Score: 4, Funny

    Funny, but it is really for the environment not the target. Most bullets pass through and then end up in the ground eventually.

    Where do you think the lead of the bullet came from?

    The ground.

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    Muchas Gracias, Señor Edward Snowden !