responsibility of bringing toxic materials to the united states, why don t they do it? reporter: president assad also talked a lot about what he calls, terrorists. and that is the foreign fighters, namely hardcore jihad its who are coming into syria to fight. they say they want an islamic state inside syria. to his point just today, turkey shut down one of the main border crossings. turkey long supported the rebels in the civil war. they say it is just too dangerous as al qaeda-inspired fighters moved into the one of the border villages in syria. kicked out all the moderate-backed, western-backed rebels inside of this. this goes to the core of the problem for the united states here as things look, in a sense while president assad certainly committed awful atrocities in his attempt to stay in power, jenna, the people who are best armed, best equipped to take over if president assad leaves probably aren t any better and in some cases we ve seen even worse. back to you. jenna: leland vi