"It all depends on who these guys were and what they have to say," Levitt said. "Hezbollah has disappeared people before. Others they have kept around."
American spies outed, CIA suffers in Lebanon →
"Iran does not feel that it can trust Hamas as much as it once did, and Hamas does not feel as much beholden to Iran as it once did because it is able to secure more independent funding," Mr. Levitt said.
Iran admits giving Hamas technology for missiles →