Analysts are making greater use of publicly available intelligence, which the NSA calls "open source." According to a "Terrorist Training Manual" found in the home of a suspected Al Qaeda member, terrorists can learn "at least 80%" of their enemy's plans using only open source information. "By using operational security, or OPSEC, NSA can still identify and design countermeasures to protect its most critical information."
May 26, 2005
Feb 05, 2018