WASHINGTON, DC - APRIL 25: CEO and chief designer of SpaceX Elon Musk participates in a discussion during the 2014 annual conference of the Export-Import Bank (EXIM) April 25, 2014 in Washington, DC. Musk announced in another event today that SpaceX will file a lawsuit against the U.S. Air Force on shutting out private companies for launching national security related rockets. The two-day event focused on global business environment and prospects for growth. (Photo by Alex Wong/Getty Images)
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