The 83 contestants visit sights in and around Las Vegas, Nevada leading up to the pageant.
Miss Australia answers a thought-provoking question from the judges.
The final 10 Miss Universe contestants are announced.
Miss USA (Olivia Culpo) is crowned Miss Universe 2012.
Miss USA tackles a difficult question from the judges.
Niki Taylor flatlines three times after a minor car crash turns deadly; Gary Busey has an out-of-body experience caused by massive head trauma when he is thrown from his motorcycle; caught in the wake of another plane Tiffany's passenger jet is nearly brought down mid-flight.
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