Segment 1: The latest on the disrupted terrorist plot in London with Brian Ross of ABC News. Segment 2: A discussion about the role of Syria in t Segment 1: The latest on the disrupted terrorist plot in London with Brian Ross of ABC News. Segment 2: A discussion about the role of Syria in the Middle East crisis with Syria's ambassador to the United States, Imad Moustapha, and Joshua Landis of the University of Oklahoma. Segment 3: Chad Hurley and Steven Chen, co-founders of the online video sharing site, YouTube. more >> <<less