Several years ago I had an argument with my bandmate Milkshake, and the rest of A+ Attitude, about profiling in airport security. Many people had been complaining about random airport security procedures that resulted in old ladies and Senators being searched. As I recall Milkshake sided with those who said this was a waste of time because no old ladies were going to be terrorists. Someone brought up the point that extremists' beliefs about women would probably prevent them from being given such a role.
My argument was that, in a world of imperfect security, random selection was the best policy, because any pattern is vulnerable to subversion. Many TSA rules are "secret" for this reason (and that produces a lot of complaints) but they would not be able to keep "never search women above a certain age" a secret. One way or another, any terrorist would jump at the chance to increase their chances of getting through by exploiting security procedures. They might send women, or they might dress up as women, but in any case such a policy would be a mistake.
Sadly, although I discussed this argument with many people since then, it appears that I did not write it down anywhere on this site. My pitiful blogging skills led me to make only an oblique reference to it in our tour journal. So this "I-told-you-so" moment carries less weight than it might. But nonetheless:
William Saletan reports at Slate that female suicide bombers are striking frequently in Iraq, taking advantage of the checkpoint guards' unwillingness to search beneath their flowing black garments.