David B. Rivkin & Lee A. Casey on Bush and NSA

excerpts from the NYT, Dec. 27:

The president has the constitutional authority to acquire foreign intelligence without a warrant or any other type of judicial blessing. The courts have acknowledged this authority, and numerous administrations, both Republican and Democrat, have espoused the same view. The purpose here is not to detect crime, or to build criminal prosecutions - areas where the Fourth Amendment's warrant requirements are applicable - but to identify and prevent armed attacks on American interests at home and abroad. The attempt, by Democrats and Republicans alike, to dismantle the president's core constitutional power in wartime is wrongheaded and should be vigorously resisted by the administration.

In an effort to control counterintelligence activities in the United States during the cold war, the surveillance act established a special court, known as the FISA court, with authority to issue wiretapping warrants. Instead of having to show that it has "probable cause" to believe criminal activity is taking place (which is required to obtain a warrant in an ordinary investigation), the government can get a warrant from the FISA court when there is probable cause to believe the target of surveillance is a foreign power or its agent.

Although the administration could have sought such warrants, it chose not to for good reasons. The procedures under the surveillance act are streamlined, but nevertheless involve a number of bureaucratic steps. Furthermore, the FISA court is not a rubber stamp and may well decline to issue warrants even when wartime necessity compels surveillance. More to the point, the surveillance act was designed for the intricate "spy versus spy" world of the cold war, where move and countermove could be counted in days and hours, rather than minutes and seconds. It was not drafted to deal with the collection of intelligence involving the enemy's military operations in wartime, when information must be put to immediate use.

Indeed, it is highly doubtful whether individuals involved in a conflict have any "reasonable expectation of privacy" in their communications, which is the touchstone of protection under both the Fourth Amendment and the surveillance act itself - anymore than a tank commander has a reasonable expectation of privacy in his communications with his commanders on the battlefield. The same goes for noncombatants swept up in the hostilities.