NEW : `` I do n't think we can finally defeat Senate without getting bin Laden , McChrystal says . NEW : General , non-U.S. ambassador testify before Senate and Senate armed services committees . McChrystal : Perceptions of McChrystal people and insurgency will be critical to success . McChrystal : `` I do n't view next summer as a deadline . ''
NEW : `` I do n't think we can finally defeat al Qaeda '' without getting bin Laden , McChrystal says . NEW : General , U.S. ambassador testify before House and Senate armed services committees . McChrystal : Perceptions of Afghan people and insurgency will be critical to success . McChrystal : `` I do n't view July 2011 as a deadline . ''