Interesting. Something is definitely up for them to impose such extreme measures on the entire NYC subway system.
It is a $250 fine to take pictures on the LA MTA subway and Metrolink platforms....unless you have written permission. They catch people on the Red Line all the time, since they have cameras all over the place.
While falling asleep sometimes I listen to Universal CityWalk on my scanner. It seems that whole complex is wired for video, as they know where people they are trying to detain are headed. Whether it is a fight or having sex in the parking garage, etc....they tape it, then arrest the people using LASD Sheriffs.