The 10 men on the list today are wanted for murder, racketeering, and theft. The FBI is offering $100,000 rewards for information leading to their arrest — and details on one man are worth up to $20 million.
People drop off the list if they are captured, dismissed of criminal charges, or no longer fit the FBI's description as someone with "a lengthy record of committing serious crimes and/or considered a particularly dangerous menace to society."
When vacancies exist, the Criminal Investigative Division of the FBI asks its various field offices around the country to submit nominations for prospective additions. FBI executives ultimately approve who makes the top 10.
Here's who is on the list and how they got there.