Originally Posted by
hikouki
I am a bit confused. I thought that taking your bags through US CBP is such a big deal? And in fact we are one of the very few, if not the only country that requires passengers to manually pick up and re-check bags, even when just transiting through US soil. And apparently it is OK to just leave the bags behind?
Mexico generally requires this (with a few exceptions). Note that in both the USA and Mexico, everyone arriving must formally enter the country, and there is no exit passport control.