Dr. Kushner, 59, is a devout profiler of terrorist types and identified Osama bin Laden as a genuine threat years ago.
"You almost invariably end up with a very hardcore rump of terrorist type activity at the back end of this and people are being realistic here," he said.
The Fire Department, too, has placed added emphasis on training for the possibility of a "terrorist-type activity" ahead of this year's marathon, said James Long, a department spokesman, who declined to elaborate.
And as terrorists develop new types of bombs, a robot using Smart could adapt to the new threats.
With Syria's troubles escalating by the day, Jordan's northern neighbour proved fertile picking grounds for the militants, who Jordan says were Al Qaeda-linked terrorists, seeking all types of arms from explosives to machine weaponry.
The criminal-justice system may not be perfect, but it has been successful in prosecuting domestic terrorists, and other types of dangerous criminals as well, and there is no reason that it cannot be used for non-citizens facing terrorism charges.
Within this article, a violent extremist (VE) group is an organization that uses violent means, like terrorism, to disrupt a legitimate authority, whereas insurgents and terrorists are common types of violent extremist groups that act with the specific goal of influencing public opinion or inciting political change.
What worries experts the most, however, is that Trump's approach gives terrorists the type of media attention they can use.
In its eighteen report CHECK the Independent Monitoring Commission noted that the UVF for instance no longer "recruited or trained people... We had seen no evidence of terrorist-type activity".
That, in turn, "makes much more real the possibility of new techniques or new types of terrorist attacks," including cyberterror, he said.
