6 of 6: Author Tom Clancy talks about the X Prize Foundation during a news conference at the National Press Club in Washington Wednesday May 20, 1998. It was announced Wednesday that Clancy's bid to buy the Minnesota Vikings is over after he withdrew his $200 million offer. The X Prize Foundation is a nonprofit organization created to jump-start the space tourism. (AP Photo/Bob Burgess/X Prize) (AP Photo / BOB BURGESS)

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