i used to be grateful that this screen was installed here by metro. it used to post info on the trains' next departure times. even if there isn't much i can do about when that's gonna be or whether i can still catch the next one, it's still nice to know. that info is still posted, with one absurd caveat. when the camera mounted to the side of the screen detects a passer-by, the screen posts images from the camera with text saying "WE ARE WATCHING!"
in other words, just when someone who might need the train information is in a position where they might be able to read it, it's taken away by a reminder from big brother as to just what an asshole he is.