3 govt officials: Homegrown terrorists troubling

FBI Director Robert Mueller waits to testify on Capitol Hill in Washington, Wednesday, Sept. 22, 2010, before the Senate Homeland Security and Government Affairs Committee hearing to examine nine years after 9/11, focusing on confronting the terrorist threat to the homeland. (AP Photo/Manuel Balce Ceneta)

September 22, 2010 7:54:44 PM PDT
Efforts by terrorists abroad to radicalize and recruit U.S. residents present new security threats, three top Obama administration officials told Congress on Wednesday.