So if you have a pocket knife you just don't get on the subway.

Understood like I said I have been several times as I have family there. the most I have ever seen is a crazy homeless dude scream at a seat on the train about how he needed money no one was in the seat. I'm in Oklahoma now and people dance in the middle of the street and try to get hit by cars.

From what I've read knives outside of utility or for work use only are prohibited. I was thinking of getting a push knife at or under two inches but that seems to be illegal as well.