The Democratic polling firm PPP did a national poll to find out Americans' favorite black helicopter beliefs.
9% say the government adds fluoride to the water supply for evil reasons.
Source: kittybloger.files.wordpress.com
21% of voters say a UFO crashed in Roswell, New Mexico in 1947 and the US government covered it up.
20% of voters say that there is a link between childhood vaccines and autism.
7% of voters said that the moon landing was fake.
Source: golden-agetv.co.uk
