This account by Mark Frauenfelder of how his 6 year-old daughter got on the CAPPS list is a slightly scary read.
And is it the case that someone assumes that children really are potential security risks? The Economist had a recent article on the logic of suicide bombing that pointed out that women are sometimes bombers; but so far, no one’s used 6 year-olds.
This jumps out at me in part because I’ve flown with two small children, but also because I’ve started reading Bruce Schneier’s Beyond Fear, his latest book on security– and because Eric Rescorla pointed out a much more serious flaw in airport security– the ID checks. Personally, I’d say anyone with Hello Kitty luggage– little kids, Paris Hilton— might be given the benefit of the doubt.