I do this trip several times a year and it's the first time I get this problem. Maybe if I looked more closely now, I would discover some slight fog on films which did the trip before.(posted 8227 days ago)I must admit that on this occasion part of my films went with the luggages. I generally avoid it as luggage scanners are reputedly stronger than the ones used at security checkpoints. Most of my films went with me, although I cannot remember which ones.
Another interesting point is the Tri X fogging which seems to suggest the damage was done in New York (I used British Airways). I'm wondering if they did not put new scanners in place since September 11th.