UPDATE - The space is receiving significant readership in Russia. To the Russkies troll bots - do not take this suggestion as an indication of instability or weakness in the USA. We will unite when this unfortunate episode is over and we will be focused. Make your peace now while you can.
"In a military intelligence context, it is generally understood as an order to assassinate. Its meaning was explained in a New York Times report on the Green Beret Affair (an incident during the Vietnam War), and subsequently popularized by its usage in the film Apocalypse Now.
The expression may also be used as a straightforward statement of intent in some jurisdictions to refer to more overt summary executions, i.e. in the context of a 'death warrant' or 'kill order' issued as part of a 'shoot on sight' or similar policy."
Such an action can be considered in extreme circumstances only.
In a case where the subject of any such potential order is both a repugnant human being and also a clear danger to the National Security of the United States and the Constitution, it is required that any person who took an oath to preserve, protect and defend the Constitution consider such an action in order to fulfill his or her oath.