TSA cuts them off all the time because it is easier than looking for the key.

The lock is much harder than the soft aluminum lock bracket on my luggage, which was undamaged, and TSA tried to argue the automated equipment must have ripped the lock off. I pointed out my neatly folded clothes were now a mess.

They said I could sue them for the cost of the lock when I filed a formal claim. I was so irked I almost did (and should have).