yea its a shame its used so much. i even seen it being used by someone on TED talk :/

im not going to get into any of the better arguments right now but one thing i like to ask when people say they have nothing to hide is "what kind of things are people looking for?"

I think its good to get a handle on what the person knows first before you start throwing out counter arguments. in a lot of cases people don't even know whether they have something to hide or not and are just repeating what they have heard others saying