CNN The Lead With Jake Tapper June 20, 2014 20:02:00
Boots on the ground. meantime, the united nations now says this terror siege forced more than 1 million people to flee their homes in iraq, but many who stayed behind are taking up arms against the sunni extremists who are vowing to take baghdad and now have one of saddam hussein's old bombed out dusty chemical weapons plants. we'll have much more on that latter with the former chief u.s. weapons inspector. meanwhile, senior international correspondent nic robertson has the latest from baghdad. >> reporter: in a nationally televised address, a top shia cleric sought to tamp down sectarian tens...