The US Navy Flight Demonstration Squadron, the Blue Angels, practice their routines in F/A-18 Hornet fighter jets on rehearsal day for the Los Angeles County Air Show, where they will be the headline act, at the General William J. Fox Airfield in Lancaster, California, March 20, 2014. The Blue Angeles are making a comeback with the start of a season after having been sequestration grounded the team from performing in public air shows last April. [Photo/Agencies]

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