In the decade after 9/11, antiterrorist training and strategies have focused on combating the threat from without – al Qaeda and Muslim extremism, with the bulk of our human and technology resources going into public transportation facilities.
The mass shootings of the past year or so, however, have brought about a change in the views of law enforcement, security professionals and the public; encouraging a convergence of antiterrorism and security strategies under the umbrella of criminal activity.