I am not sure why this comment (and all Udik's comments) is being downvoted into oblivion. This is the view of the US government and quite likely a vast majority of citizens here (and, I would guess, in many countries).

This morning I was having a conversation with my fiancee, who said "if the US government gets a warrant they can open your mail, they can tap your phone calls, they can come into your house and search -- why should your phone be some sort of zone they cannot search even with a warrant?"

I happen not to agree but this is not some wacko view.