Imagine a scientist who discovers a great new cure for mankind's ills. an energy technology, or a health aide. now imagine a cartel thug approaches him and tells him:
as soon as you make the move to let the world know your great discovery, we will kill you. then we will kill your family. slowly. and we will stop the information before it gets out anyway, so you will just die for no reason.

or perhaps:
either you die, or you come with us to a mountain-base laboratory, where you will spend your life devoted to your science, which we will use. we will hold you and your family hostage.
(knowing that all of your work will be for the military)

or just:
come or die. your call.