Comment I wouldn't worry that much (Score 1) 940
I've travelled in and out of the US quite a lot of times in the last 12 months, and not being a US citizen you'd think they'd check better... well they don't , imagine that if they have to check everyone's hard disk, they'd take a lot of time for every board.
At the most, they will ask you to turn on the laptop just to make sure it's a laptop and not a case that you use to put something else inside.
Just be cool and don't start talking about privacy violations while you're waiting in line, that's the worst you can do.