I doubt that the case. If the fbi can send a sharp shooter to the wilds of Idaho to take out a mother holding her infant child and get away with it, they can look at a suspected terrorists' computer without anyone's permission.
Nevertheless, in the wake of the Sept. 11 attack, the rejection of the FISA warrant has produced tension between field agents in Minneapolis and their Justice Department and FBI superiors in Washington. Officials in Washington are adamant that there was insufficient grounds to approve the warrant based on what was produced by Minneapolis agents. “There does not seem to be any disagreement that the legal standards [for a FISA warrant] weren’t met,” said one top U.S. law enforcement official. The law requires the bureau to show evidence that the suspect is an “agent” of a foreign power or terrorist group, something the Minneapolis field agents never had, the officials said.