He was able to maintain a security clearance despite concerns about his mental health and an arrest that investigators never reviewed. Problems had earlier surfaced with former National Security Agency contractor Edward Snowden, who now lives in Russia to avoid charges for disclosing classified material, and Army Pvt. Chelsea Manning, who went to prison for leaking classified documents, triggering calls to update the antiquated system to include more frequent criminal and financial checks of workers who have security clearances. Workers with secret clearance are re-evaluated every 10 years, and those with top secret clearances are checked every five years. Already the department has started the continuous evaluation process for about 1.1 million employees, and since January, 58 workers have had their security clearances revoked.

Source: ABC News June 02, 2018 00:45 UTC