Two F-35 Lightning II, also known as the Joint Strike Fighter (JSF), fighter aircraft are seen as they arrive at Edwards Air Force Base in California in this May 2010 file photograph. REUTERS/Tom ... more 
Two F-35 Lightning II, also known as the Joint Strike Fighter (JSF), fighter aircraft are seen as they arrive at Edwards Air Force Base in California in this May 2010 file photograph. REUTERS/Tom Reynolds/Lockheed Martin Corp/Handout less 
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Reuters | Photo By HANDOUT / Reuters
Mon, Jul 14, 2014 8:46 AM EDT