How Many Known Affiliates Does Al Qaeda Have?

The Washington Post reports that President Bush tried to assure us that the data mining program was limited in scope:

He denied forcefully that his administration is "mining or trolling through the personal lives of millions of innocent Americans," saying, "Our efforts are focused on links to al-Qaeda and their known affiliates."

Surely he doesn't mean to tell us that Osama Bin Laden has millions of known affiliates inside our borders?

The Bush administration has secretly been collecting the domestic telephone records of millions of U.S. households and businesses, assembling gargantuan databases and attempting to sift through them for clues about terrorist threats, according to sources with knowledge of the program.