you just hope that none of the children will go before you. and now it has happened. >> so many questions, still so few answers about who shot down malaysia flight mh-17, and a back and forth on whether investigators are being allowed to the scene itself. we'll have the very latest. rocket shelling battles, and an operation rages on in gaza. crisis on the border. president obama is set to meet with the presidents of guatemala, honduras and el salvad salvador. how will this impact thousands of undocumented ingrants. i'm richard lui in for craig melvin on this saturday. we're going to get right to those fast-moving developments