FILE - In this July 20, 2012 file photo, relatives carry the body Kochava Shriki, 44, in Rishon Lezion, Israel, two days after she was killed in a suicide bombing in Bulgaria. Officials

 

              FILE - In this July 20, 2012 file photo, relatives carry the body Kochava Shriki, 44, in Rishon Lezion, Israel, two days after she was killed in a suicide bombing in Bulgaria. Officials
FILE - In this July 20, 2012 file photo, relatives carry the body Kochava Shriki, 44, in Rishon Lezion, Israel, two days after she was killed in a suicide bombing in Bulgaria. Officials have blamed the attack on Hezbollah. Iran's elite Quds Force and Hezbollah militants are learning from a series of botched terror attacks over the past two years and pose a growing threat to the U.S. and other Western targets as well as Israel, a prominent counterterrorism expert says. The terror plot in Bulgaria suggests that militants may be learning from their missteps. (AP Photo/Tsafrir Abayov, file)