ARLINGTON, Va.--(BUSINESS WIRE)--CACI International Inc (NYSE MKT: CACI) announced today that Dr. J.P. (Jack) London, Executive Chairman and Chairman of the Board, gave a keynote speech on July 29 at the National Contract Management Association’s (NCMA) World Congress 2015 at the Gaylord Texan Resort & Convention Center in Dallas, Texas. Speaking to more than 1,000 attendees, Dr. London delivered a compelling address on the critical importance of ethics in government contracting. Held July