U.S. issues warning on airspace near Gulf as Iran tensions simmer
On Friday, a defiant Iran said it could "easily" hit U.S. ships.
The fourth U.S. Air Force F-35A Lightning II aircraft arrives at the 422nd Test and Evaluation Squadron at Nellis Air Force Base, Nevada in this April 24, 2013 photo released on May 8, 2013. (photo credit: REUTERS)ByREUTERS
