Yahoo News Special Report: U.S. Intel suggests ISIS bomb downed Russian plane

On Wednesday October 4th, reports surfaced that U.S. intelligence sources now believe that ISIS or an affiliate of the terrorist organization is responsible for the downing of a Russian jetliner over Egypt’s Sinai Peninsula. 224 people were killed in what authorities are now reportedly blaming on a bomb planted on board. Yahoo Global News Anchor Katie Couric and Yahoo’s Chief Investigative Correspondent Michael Isikoff have a breaking news report.