re: fbi paid geek squad to turn in customers

I don't think this is a 4th amendment violation. You're voluntarily giving your computer to a tech and asking them to fix it, anything illegal discovered in the process is fair game. The fact that the FBI paid them doesn't make it a constitutional violation because such a person could be turned in voluntarily by the geek squad anyway for child porn.

This is effectively no different than a paid drug informant.