well, this is a very bad deal. we're better off without it. >> reporter: president obama is firing back. >> prime minister netanyahu has not offered any kind of viable alternative that would achieve the same verifiable mechanism to prevent iran from getting a nuclear weapon. >> reporter: there were times of standing ovations but some icy glaers as netanyahu painted a picture of a militant iranian regime extending its reach throughout the middle east with what he calls iran's tentacles of terror. >> at a time when many hope iran will join the community of nations, iran is busy gobbling up the nations. >> reporter: with secretary of state john kerry in geneva the prime minister portrayed the obama administration as weak me goegs yeah fors. >> two deal has two major