(16.12.2005) Mr. Bush‘s executive order allowing some warrantless eavesdropping on those inside the United States – including American citizens, permanent legal residents, tourists and other foreigners – is based on classified legal opinions that assert that the president has broad powers to order such searches, derived in part from the September 2001 Congressional resolution authorizing him to wage war on Al Qaeda and other terrorist groups, according to the officials familiar with the N.S.A. operation. (…)