Great. I've got to spend next week in the Big Apple on a business trip, taking the subway every day from Newark to Times Square. Sigh.
Well, if you smell B.O. and reefer just move away... It's either an ANSWER person, or one of their backpacks...
You really need to worry -- not because of terrorism -- but because there is no subway running run Newark to Times Square. What you will need to do is take the PATH train into Penn Station and then the A, C, or E subway to Times Square.
Just stay away from the edge of the tracks and if you smell anyone just move.