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About 90 million Americans believe aliens exist. Some 66 million of us think aliens landed at Roswell in 1948. These are the things you learn when there's a lull in political news and pollsters get to ask whatever questions they want.

Update, October 31: We've figured out who the government reptilians are, using science.

Public Policy Polling has raised weird polls to an art form. During last year's presidential campaign, the firm earned a bit of a reputation for its unorthodox questions; for example, "If God exists, do you approve of its handling of natural disasters?"

Today PPP released the results of a national survey looking at common conspiracy theories. Broken down by topic and cross-referenced by political preference, the results will not inspire a lot of patriotism. If you need to defend your fellow countrymen, be sure to note that the margin of error is 2.8 percent.

We took the findings and arranged them from most- to least-believed. And, just to inspire additional shame, figured out how many actual Americans that meant must believe in things like the danger of fluoride in water. (28 million, if you're wondering.)

View the full question asked for each conspiracy.

Conspiracy Percent believing Number of Americans believing JFK was killed by conspiracy 51 percent 160,096,160 Bush intentionally misled on Iraq WMDs 44 percent 138,122,178 Global warming is a hoax 37 percent 116,148,195 Aliens exist 29 percent 91,035,072 New World Order 28 percent 87,895,931 Hussein was involved in 9/11 28 percent 87,895,931 A UFO crashed at Roswell 21 percent 65,921,948 Vaccines are linked to autism 20 percent 62,782,808 The government controls minds with TV 15 percent 47,087,106 Medical industry invents diseases 15 percent 47,087,106 CIA developed crack 14 percent 43,947,966 Bigfoot exists 14 percent 43,947,966 Obama is the Antichrist 13 percent 40,808,825 The government allowed 9/11 11 percent 34,530,544 Fluoride is dangerous 9 percent 28,252,264 The moon landing was faked 7 percent 21,973,983 Bin Laden is alive 6 percent 18,834,842 Airplane contrails are sinister chemicals 5 percent 15,695,702 McCartney died in 1966 5 percent 15,695,702 Lizard people control politics 4 percent 12,556,562



Just to further inspire conversation, PPP broke down belief in each theory by whom the respondent supported in the 2012 election. This yielded some genuinely interesting results.