A prominent Iranian nuclear scientist was killed by a bomb in Tehran this morning, triggering a furious controversy over who was responsib...

Tampa, Florida (CNN)  -- In addition to diplomacy and sanctions, the United States has developed contingency plans in dealing with Iran...

London, England (CNN)  -- The three men arrested Friday night aboard an Emirates Airlines plane at Heathrow Airport had made a verbal threa...

CNN)  -- In the second such incident in three days, fighter jets escorted a diverted commercial flight on Friday after an unruly passenge...

Washington (CNN)   -- The government had sufficient information to have potentially disrupted an al Qaeda plot to bomb an airliner on Chr...