After being removed from many pay per view carriers, and with mounting pressure from politicians such as Senator John McCain, the UFC had continuing troubles finding a venue, and a state, that would host UFC 12.
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UFC 12 also marked the first appearance of commentator Joe Rogan, who handled backstage interviews for the event and interviewed the winners of the main events.
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Joe Rogan appeared in an earlier UFC, UFC 12 as the behind-the-scenes interviewer before hosting Fear Factor.