Terrorism expert Dr. Jeffrey D. Simon’s’s THE BULLDOG DETECTIVE: WILLIAM J. FLYNN AND AMERICA’S FIRST WAR AGAINST THE MAFIA, SPIES, AND TERRORISTS, tells the unknown fascinating story of William Flynn, nicknamed “the Bulldog” who, acclaimed by his peers as one of America’s greatest early twentieth century detectives, brought down the Mafia and a sophisticated German spy ring, while launching the first war on terrorism that still resonates today.