Senate and House panels hold hearings on homegrown terrorists and America military . Authors say study shows dimensions of the threat . Rezwan Ferdaus , for instance , is charged with hatching a harebrained plan to attack the Pentagon and U.S. Capitol earlier this year using remote-controlled model aircraft loaded with explosives . American military is a target for Islamist extremist plots at home and abroad , they say . Authors : House should also study threat from Islamist terror groups of left , right .
Senate and House panels hold hearings on homegrown terrorists and America military . Authors say study shows dimensions of the threat . American military is a target for Islamist extremist plots at home and abroad , they say . Authors : House should also study threat from Islamist terror groups of left , right .