News Desk: Our Men in Iran? : The New Yorker: In mid-January, a few days after an assassination by car bomb of an Iranian nuclear scientist in Tehran, Secretary of Defense Leon Panetta, at a town-hall meeting of soldiers at Fort Bliss, Texas, acknowledged that the U.S. government has “some ideas as to who might be involved, but we don’t know exactly who was involved.” He added, “But I can tell you one thing: the United States was not involved in that kind of effort. That’s not what the United States does.”