breaking news coverage. in the meantime, thanks very much for watching. i'm wolf blitzer in "the situation room." erin burnett "out front" continues our coverage right now. >> next, two major breaking news stories we're following tonight. another malaysia airlines plane goes down. this one shot down with nearly 300 on board. who is behind the attack? and israel launches a major ground offensive into the gaza strip. we're live there tonight. let's go "outfront." good evening, everyone. i'm erin burnett. "outfront" tonight breaking news, shot down. a malaysian airline boeg 777 downed by a surface-to-air missile. there are no survivors. malaysia airlines flight 17 was at cruising altitude near 33,000