manneca - I did the same with dual lead lined bags in my carryon but on one trip I had a powertripping hole that said it was policy and through the gallon ziplock bag through the x-ray and then proceeded to open 20 rolls of IR film. yeah not a good situation at RDU needless to say that client with counsel got a private meeting with the RDU FSD that same day and got everything resolved post haste.
The film i had F'ed at DFW was used for B-stock and i purchased fresh film at my destination, and needed to have more bought after 2 day of shooting because we had burned through all 300 rolls of 220 and had additional 500 rolls overnighted from B&H Photo in NYC. The 50 rolls of 35mm(that got scanned) had ever so slight damage to the 35mm film but i was able to fix that in post with noise removing software and layer masks fortuanately none of the images where cruical. None of the 220 film had any damage but then again no imcompetant LEO wannabes got anywhere near it.
TSA is the biggest reason that i shot all digital(still shoot alot of medium and large format film each year for personal projects) away from the studio, and all of my gear is shipped insured by fedex if i can help it. This is so there wont be anyblame game or fingerpoint if something gets damaged. That didnt help a couple of months ago when at the last minute a piece of equipment(39 megapixel Med Format back) that had been sent in for service and the photographer i was assisting said to bring it when i came in. My mountainsmith correspondent bag got checked and you should have seen the reaction as I saw the look in the agents eye of "yes, i have the next big catch" when they saw the back and the case it sits in. That look didnt last long for which i snapped the individual out by saying "Don't damage it, you dont make enough in two years to pay for it" that got there attention and that was the end of the bag being checked.
yes TSA stupidty has no bounds, and will only stop when cardiac arrest, decapitation, and spontaneous combustion happen at once.