Agency spokeswoman Vanee Vines says the NSA searched for "indications of outreach" and found nothing related to Snowden's claims. The agency only found an April 2013 email from Snowden to the general counsel's office seeking an explanation about material in a training course.
Snowden has said that he acted as a whistle-blower when he disclosed classified details about the government's post-9/11 surveillance programs. The government has rebuffed that claim and charged him with three offenses.