I think it was over 2 years ago but a guy on reddit pointed out that terrorists would obviously target the weakest link. He said something on the lines that instead of trying to hijack airplanes they'd just go blow up some mall or something. If my memory serves me well, I think they put a tracker on him for that comment.
Oh yeah, I remember that. I assume I'm already on plenty of watchlists for being moderately vocal about thinking the entire situation is bullshit. Maybe it's time I look under my car again.
The funny thing is I'm neither American nor in the USA, but I'm sure they've still got some intel on me (since USCIS does legally have my records anyway).
Here's the comment in question - http://www.reddit.com/r/AskReddit/comments/ciiag/so_if_my_de...
Actually this whole thread actually is relevant - http://www.reddit.com/r/AskReddit/comments/ciiag/so_if_my_de...
[Edit - They put a tracker on his friend, not him]