[wideawake]

Again, if you freely offer up information about yourself to a third person (your phone company) and they freely offer up that information to the government, there really isn't much of a "due process" issue.

Also, the FISA court is one which grants warrants - it is not a court in which people are accused or charged or indicted or convicted of crimes.

Warrants are always obtained secretly - it is kind of the point of a warrant.

[editor-surveyor]

>> “Warrants are always obtained secretly - it is kind of the point of a warrant” <<

.
The constitution offers no such thing as the secrecy of a warrant. Court proceedings are all assumed to be open to public scrutiny, and any secrecy must be publicly requested in open court by requesting a meeting in chambers.

[OneWingedShark]

Also, the FISA court is one which grants warrants - it is not a court in which people are accused or charged or indicted or convicted of crimes.

Warrants are always obtained secretly - it is kind of the point of a warrant.

These aren't just warrants, these are general warrants -- Writs of Assistance, in all but name -- and what do they base these warrant issuance on? Why on that you might be, not are, and then go fishing for the proof.