THIS is why the NSA meta-data program is unconstitutional:

California NORML experienced an abrupt drop in the number of hotline calls we received after revelation of NSA's phone surveillance program in late June. Prior to then, we received an average of about 15-20 calls daily on our hotline; afterwards, calls dropped to 5 -10 per day.

Freedom of Association

EFF Files 22 Firsthand Accounts of How NSA Surveillance Chilled the Right to Association | Electronic Frontier Foundation