the president took the stage at the unitedded nations urging the assembledded leaders to address the wave of anger across the muslimorld. >> the attacks of last two weeks are not simply an assault on america. they're also an assault on the very ideals upon which the united nations was founded. if we are serious about these ideals, we must speak honestly about the deeper causes of the crisis. because we face a choice between the forces that would drive us apart and the hopes that we hold in common. >> woodruff: at least 50 people ve died in the violen. initially sparkd by an anti-islamic video. and u.s. ambassador chris stevens was killed in an assault on the u.s. consulate in benghazi, libya. the president condemned the video, but he insisted there is no justification for mindless violence. >> given the power of faith in our lives and the passion that religious differences can inflame, the strongest weapon against hateful speech is not repression. it is more speech. the voices of tolerance that rally against bigotry and blasphy anlift up e values of understanding and mutual respect.