Analog film photography and cameras

In UK and most of Europe you have zero chance of getting a hand check unless its marked as ISO800 or 1600, and even then.
If you fly through Dubai, Qatar or the other one they will do it if you ask. I once passed through Qatar security 4x in one day (long story) and the same guy was like fuck my life, this guy again, used up all their drug and explosives swabs and good will I suspect.

If you fly pretty much anywhere in SE Asia they will hand check anything if you ask nicely and don't get arsey.
S. Korea, absolute will not, Japan, absolutely will not. Taiwan, I managed it but only by getting to the third tier of 'manager' who as soon as he saw old cameras, was chatty as hell and just waved my massive bag of 100 odd rolls through without even really looking at them.

Batch from S.Korea all my 120 have a slight fog, stuff thats gone through different cameras, different rolls, its not terrible, akin to having a soft filter on, however when I was there I managed to get hold of who underwrites their insurance policy, 100% won't ever get anything from it but want to stick a fire up the arse of the 'managers' who just looked at me like 'FILM IS FINE< PUT IN SCANNER NOW'. 135 all seems fine, so possibly that literally the metal canister is enough to diffuse some x ray machines.

So lead baggy is now in my travel bag at all times, it doesn't stop everything but hopefully enough that with only a few scans won't affect negs.

Have never come up against a new CT scanner yet. They are supposed to 'deffo offer hand scanning of all film items' wherever a CT scanner is installed, however the average low paid, stressed out, abused by the public bod that has to man these things is going to take some persuasion to get to that outcome.