The 'patiot act' has given LE some extraordinary powers under the guise of national security.
LE can basically write their own warrants and in effect, do it after the fact.
After hearing some congressmen speak on the subject and admitting they didn't read the whole patriot act before voting, I doubt any of them read it before voting on it.
I've also not doubt Benjamin Franklin would be pissed if he read it.
Look it up if you don't believe me.