On Wednesday, Israel's U.N. Ambassador Haim Waxman repeated the accusation that Iran and Hezbollah carried out a suicide bomb attack in Bulgaria last week. It killed five Israeli tourists and the Bulgarian bus driver.

Iran called that claim baseless. For their part, Tehran claims Israel's Mossad spy agency killed five of their nuclear scientists since 2010. They also accuse Israel of other clandestine operations -- like planting computer viruses.

WTOP National Security Correspondent J.J. Green offered analysis on Capital Insider.