There actually was an article like this in Wired magazine last year: http://www.wired.com/wired/archive/14.06/chemistry.html that talks about some of the terrorism issues. Yeah, I think it's true that chemistry sets have become less dangerous, but there are also a lot of them available now for younger kids than were available years ago. Here's a kit designed for ages 4 and up http://www.discoverthis.com/first-chemistry-kit.html Couldn't find that 20 years ago.
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Here's the basic flow chart for the fuel cell process http://cfci.ccmr.cornell.edu/Fuelcell.html. Dr. DiSalvo also gave an interview a while ago explaining the fuel cell process for non-techies http://www.discoverthis.com/article-fuel-cells.html
There actually was an article like this in Wired magazine last year: http://www.wired.com/wired/archive/14.06/chemistry.html that talks about some of the terrorism issues. Yeah, I think it's true that chemistry sets have become less dangerous, but there are also a lot of them available now for younger kids than were available years ago. Here's a kit designed for ages 4 and up http://www.discoverthis.com/first-chemistry-kit.html Couldn't find that 20 years ago.