Originally Posted by
donnyb
The point to remember (which has not yet been fully explained to TSA staffers nationwide) is that x-ray exposure is cumulative. So if you are only going through 1 airport x-ray and your film is 400 ASA or less its no big deal. But if you have onward flights and could conceivably expose that film to 5 x-ray passes, it can fog the film. Better to be safe than sorry. And since they have been trained to know that 1600 ASA film needs a hand check I just tell them that.
Yeah, they utterly don't get it. I've gone digital these days but I've had arguments with them in the past when they read the ASA on the spools.