can vin kat preexercise -- we have two political branchs that delegation of the president's authority to exclude certain classes of aliens plus constitutional authority, so both political branchs came together. and we have both executive and determination these are countries of concern. where my colleague how you slice this, how you treat the concern, what are the measures, he says extreme vetting, that's not -- by the way, breed terrorism, they high quality vetting in the judgment of this administration is impossible.