We investigate a few of the juicier government secrets from one of the nation's most private agencies.

You can read Marilyn Monroe's FBI file online, not to mention your own

Look into the Freedom of Information Act. Baron/Getty Images

The Vault, an FBI reading room of more than 6,700 documents, contains details of investigations into Marilyn Monroe, Dick Clark, Joe Paterno, Steve Jobs, and many more people famous for everything from music and movies to organized crime. Thanks to the Freedom of Information Act, if you're curious about the dirt the FBI has on you, you're able to request the files. These are 13 celebrities you'd never guess had FBI files.

Even with no arrests, your fingerprints are probably on file in Clarksburg, West Virginia Over 100 million fingerprints are on file. Flickr/Alan Levine If you've had your fingerprints taken as part of a background check to, say, get a driver's license or a job, or to buy a gun, the results likely live in the FBI's Integrated Automated Fingerprint Identification System (IAFIS). This database of more than 100 million fingerprints is located in a huge "data campus" in Clarksburg, West Virginia, about 250 miles west of the main FBI headquarters in Washington, DC. Even with so many on file, according to the FBI, its system can match a set in about 12 minutes. It's not a deal breaker if an agent has a past history of recreational drugs You just can't have used it within a certain time span. Robert Galbraith/Reuters Candidates are automatically disqualified if they smoked pot in the last three years, or used another illegal drug in the last ten years. They're also dinged for having worse than 20/200 vision. To become an FBI Special Agent, candidates must be between the ages of 23 and 37 and successfully complete a battery of physical tests including a timed 300-meter sprint (women must run it in less than 65 seconds to qualify; men, 55 seconds) and pushups (women must do at least 14; men, 30). If they have training in any of the 12 "critical skills," including accounting, finance, or law, their application will move to the top of the pile. These are the 10 facts you never knew about the Secret Service. The criminals on the FBI's Most Wanted list? They're often chosen based on looks Features include tattoos, scars, or strange face shapes. Justin Sullivan/Getty Images