>> and the president shortly after taking a few questions from reporters boarded marine one, some big headlines made there. all because the united states at this point is estimating that hundreds of iraqi civilians may have been killed in just this short time that it took these invaders to attack or capture several key cities, including mosul. an estimated 500,000 iraqis have fled. and that includes civilians as well as soldiers. in the meantime, the people who are burning the cities and killing people and scaring the hell out of the entire middle east at this point are so violent and so radical that even al qaeda doesn't want neglect to do with them. they call themselves iey eye isis.way they operate makes the days of osama bin laden look almost bearable by comparison. here is a brief intro into who isis is from anderson cooper.