I’m back in LA. Just a quick observation: BWI has put in the new millimeter scanning booths, and I was a lucky winner. Can’t say that I like them. I’m not travelling enough that I’m worried about the radiation, but they significantly slow the movement through security, especially when the TSA folks seemingly stand around talking to their coworkers instead of focusing on getting people through with a smile. I’ll also note there is no information before you go through indicating you have the ability to opt out, so the implication is that you must go through them (and you go through them instead of the normal x-ray).