Americans believe a lot of conspiracy theories Global warming is a hoax, Osama bin Laden is still alive and Barack Obama is the anti-Christ, some Americans say

A new PPP survey asked Americans whether they believe in some of the more widespread conspiracy theories, and the results were a bit troubling.

Thirty-seven percent of voters, including 58 percent of Republicans, believe that global warming in a hoax. Six percent believe Osama bin Laden is still alive, while 13 percent think Barack Obama is the antichrist (including 22 percent of Romney voters). Five percent believe Paul McCartney actually died in 1966.

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Perhaps the weirdest: 4 percent say "they believe 'lizard people' control our societies by gaining political power."

More from the survey: