The same company that investigated alleged Navy Yard shooter Aaron Alexis for his security clearance also did a 2011 follow-up investigation of Edward Snowden, the former NSA systems analyst who leaked documents about the National Security Agency.
The company, USIS, said in a statement Thursday it conducted Alexis' background check in 2007 for the Office of Personnel Management but that it couldn't elaborate.
Source: Fox News. Read full article. (link)