For thousands of colleges across the country, "ghost students" — sophisticated thieves who use stolen or fake identities to enroll in classes online and sign up for Pell grants and loans — are committing identity theft. The scammers then disappear once they get the money — robbing the federal government of hundreds of millions of dollars and leaving an untold number of victims in their wake. ABC News’ Steve Osunsami reports. https://abcnews.visitlink.me/1JWGC7 | ABC News