@foxnews: U.S. intelligence warns Iran has significantly escalated efforts to target Americans overseas, with plots to kill U.S. citizens reportedly reaching "advanced stages" in the Middle East and other countries. The warning comes in a memo sent to Secretary of State Marco Rubio as the State Department adjusts embassy staffing in response to growing security threats. The U.S. has already ordered non-emergency government employees and their families to leave Saudi Arabia following attacks by Iran-backed Houthi rebels. See what the intelligence memo says about Tehran's expanding efforts at the link.