are we doing in the united states? what is our foreign policy? what are we about? and why are we whipping at each other's throats -- um -- instead of terrorism that we are now fighting the enemy within ourselves? >> i want to play part of the video that president biden released tonight focusing on the sense of unity in this country following 9/11. here it is. >> yeah. >> unity is what makes us who we are. america at its best. to me, that's the central lesson of september 11th. it's that at our most vulnerable, in the push and pull of all that makes us human, in the battle for the soul of america, unity is our greatest strength. unity doesn't mean we have to believe the same thing. but we must have a fundamental respect and faith in each other and in this nation. >> clearly, we lost a lot of unity. when you look back on these 20