By David A. Graham
Chances are that by now you've heard about the Aug. 19, 2010, Pew poll that found that nearly one fifth of Americans (mistakenly) believe that President Obama is a Muslim. Perhaps you think that a terrifying outlier; or perhaps you're a believer, and then you are in good company. Either way, you're wrong: in fact, remarkably high numbers of Americans believe the most unusual things. Although the portion of poll respondents who believe Obama is a Muslim has risen recently, some of these oddball opinions contain more consistent numbers of believers. Here's a sampling of the nuttiest.