Originally Posted by DementedLogic
Perhaps you are unfamiliar with the 4th amendment. I'll help familiarize you with it. It reads as follows:
"The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no warrants shall issue, but upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized."
Unfortunately, as Amnorix has pointed out, the 4th does NOT apply to data held by a 3rd party. You effectively waived your 4th Amendment rights when you "gave" your data to the phone company, or Facebook, or Google, etc etc
This has consistently been the Supreme Court's stance.