Ron Wyden actually said...

current FISA law prohibits the Intelligence Community from collecting GPS information on Americans overseas without a warrant.

This is going to be an ongoing kind of process between, you know, sources and methods--got to be secret--and public law.

Is there any reason why that protection should not be extended to Americans in the United States?

I think in a democracy it's important that our laws be transparent and public to the maximum extent possible.