Laser Incidents With Aircraft On the Rise
EqualSlash writes "High-power laser pointers available for cheap are increasingly finding abuse as the ultimate long-distance weapons of pranksters and vandals. The Federal Aviation Administration says laser events aimed on planes have nearly doubled in the last year, leaping from 1,527 in 2009 to 2,836 in 2010. The highest number of incidents was reported at Los Angeles International Airport, which recorded 102 in 2010. Lasers pointed at cockpits can temporarily blind pilots, forcing them to give up control of an aircraft to their co-pilot or abort a take-off/landing. In March of 2008, unidentified individuals wielding four green laser pointers launched a coordinated attack on six incoming planes at Sydney Airport, which resulted in a ban on all laser pointers in the state of New South Wales."
This is an example of the "fallacy of the transposed conditional" and how people use it to justify legislation that does nothing to address the problem.
See if you can assign a likelihood (high or low) to the following:
Probability that someone has a laser, given that they shined one at an airplane,
Probability that someone shines one at an airplane, given that they have a laser.
The likelihood that anyone having a laser will use it against an airplane is so astronomically small that legislation will have no appreciable effect, but will inconvenience many people.
The logic is precisely backwards, but it sounds like a justification.
Someone should introduce the legislators down under to Bayes Theorem.