I also don't agree with the "nothing to hide" argument. There are certain things that I do in real life or online that might be embarassing. I'd like to protect what few rights I have left. At the rate of which they're being stripped from us... I suggest you do too!

This is kind of offtopic... but not really.

Many people (including me) are intimidated by law enforcement. They have to be suspicious of everyone. I've had enough encounters (both good and bad) with police now that I am comfortable dealing with them. Not encounters because I was breaking the law (other than a traffic violation or underage consumption in college).

When I was younger, I didn't really know my rights and basically gave up my rights as soon as I was approached by police. I was searched and felt like a criminal. It's embarassing to have the cops searching your car. All the contents of your trunk spilled out onto the side of the highway... just becase you're young and wearing a tiedyed shirt and en route to a phish show. Mind you, they never found anything illegal... but I'll agree that there are some things that I wish my friends didn't see coming out of the car.

If I had known then, what I know now about my rights... I could have saved myself some embarassment. If you live in the US and are not sure what your rights are when encountering law enforcement, then view this video. Actually, I suggest you view it at every couple of months just to be sure it's fresh in your mind.
BUSTED: The Citizen's Guide to Surviving Police Encounters