From The Enigma
NPL Magazine
October, 2016
Earl E. Byrd

The two key words in this timely and clever flat are anagrams:

Immigration is an issue more complex
   than long ago.
Do we welcome new arrivals, or
   emphatically say, "No"?
It's a question of how surely we are
   able to _ _ _ _ _ _ _ _ _
Which arrivals are the ones who,
   in the end, will work out well
Versus those who pose a danger of
   becoming _ _ _ _ _ _ _ _ _ threats.
It's a shame when one's religion is a
   factor in such bets.

Answers:

ASCERTAIN - SECTARIAN