AdvertisementMysterious Events Leave Tehran Feeling Under Siege04:05Download AudioResumeDecember 14, 2011Mike ShusterfacebookEmailA picture released by the official website of Iran's Revolutionary Guard on Dec. 8 shows Iranian Revolutionary Guard Brig. Gen. Amir-Ali Hajizadeh (right) looking at a U.S. spy drone that crashed in Iran on Dec. 4. (AFP/Getty Images)