After retiring from military service , Nance founded a consulting company based in Georgetown , Washington , D.C. where he provided advising services to United States Special Operations Command . During the September 11 attacks , Nance personally witnessed American Airlines Flight 77 crash into The Pentagon and he assisted in rescue operations at the impact site . He created a training center called the Advanced Terrorism , Abduction and Hostage Survival School . Nance manages a think tank analyzing counterterrorism called " Terror Asymmetrics Project on Strategy , Tactics and Radical Ideologies " , consisting of Central Intelligence Agency and military intelligence officers with direct prior field experience . Nance is a member of the board of directors for the International Spy Museum in Washington , D.C. Nance 's books on counter-terrorism include : '' An End to al-Qaeda '' , '' Terrorist Recognition Handbook '' , '' The Plot to Hack America '' , '' Defeating ISIS '' , and '' Hacking ISIS ''
September 11 attacks
September 11 attacks
The Terrorists of Iraq