FBI's Mueller: Homegrown Terrorists Threaten U.S.

FBI Director Robert Mueller sees a rising threat from homegrown terrorists but cautions that foreign groups are far from vanquished and still consume more bureau resources.

'We have certainly hundreds' of people within the country that the bureau is investigating with varied levels of intensity, Mueller told a group of reporters Wednesday. 'But if you're looking at terrorism across the board . . . we have several thousand cases.' More ...