Never had an issue in the US. Coming back from Cozumel Mexico one of their security people was on a pair of micro wire cutters, had to empty most of a bag so she could "find" them. Then she took it to a supervisor who said it was fine so she gave them back and I wasted another 5 minutes repacking my bag wasting their space. I had flown down with them and passed through TSA again heading home without issue.

When I got to Cozumel they decided I needed extra screening because of all my cases. I was there to SCUBA dive. Woman in front of me lost like six cartons of cigarettes and had to pay a fine. Her husband passed through and was gone, she was pissed... Dude half ass checked my two cases, carry on bag, and personal item bag and sent me on my way.