Originally Posted by
oneofthosepeopleyouloveto hate
Relax; TSOs are not going to be required to enforce the size limits.
(Personally, if I'm the ticket checker and encounter a Kettle toting wayyyy too many/large bags, I'll direct them upstairs to the baggage check, and set them up so they don't have to go through the entire line a second time. However, they're under no obligation to heed my advice or accept my assistance!)

Given that the 2-bag rule IS federally mandated, I can't see any reason that the TSA would avoid sticking it's nose in the airline's business.
BOHICA.