Members of the U.N. hold a moment of silence for the 298 victims killed on Malaysian Airlines flight MH17. The U.S. Ambassador to the U.N. becomes emotional as she offers condolences. "As we stared at the passenger list yesterday, we saw next to three of the passengers names the capital I. As we now know, the letter I stands for infant. To the families and friends of the victims it is impossible to find words to express our condolences."