FBI Launches NSA Leaks Investigation

Edward Snowden is still in Hong Kong

The director of the U.S. Federal Bureau of Investigation, Robert Mueller, is vowing to take swift action against the former CIA analyst who has confessed to leaking documents exposing a pair of top secret government surveillance programs.

Speaking to lawmakers Thursday, FBI chief Mueller confirmed that a criminal investigation has been opened into the leaks, which he said have dealt a blow to U.S. national security.