the focus for the president of the united states, how social media can be used to counter violent extremist ideology. apparently his audience we're told is mostly young people, millennials. we'll take you there live as it happens. meantime, president trump is calling on the muslim world to join america and share the burden in the fight against terror. earlier today during a speech in saudi arabia the president called on muslim nations to confront islamist extremism. the president pledged america's continued support in the fight against terror, but also pressed middle eastern countries into greater action. >> america is prepared to stand with you in pursuit of shared interests and common security. but the nations of the middle east cannot wait for american pow tore cru power to crush this enemy for them. the nations of the middle east will have to decide what kind of future they want for themselves, for their country. and for frankly, for their