One-Third of Americans Believe in UFOs, Survey Says

Our take: While only one in 10 of those surveyed have had a personally seen an alien spaceship, just over a third of the population, 36 percent, believe that UFOs are real.

And if aliens were to invade the country sometime in the next four years, 65 percent of survey respondents said President Obama would be better suited for handling the invasion than Republican presidential candidate Mitt Romney.

More surprisingly, the new NatGeo survey found that a whopping 79 percent of people think the government has kept information about UFOs a secret from the public, and more than half (55 percent) believe there are real-life "Men in Black"-style agents who threaten people who spot UFOs.

Read more about UFOs on Space.com.