I detect a distortion of what Trump said and what he was actually talking about. I believe HE was actually talking about the ‘wall’ and keeping illegals from coming into the country. The Washington Post lumped the Muslim “database” thing in with Trump’s desire to keep illegals out and keeping the nation safe. Apparently we wasn’t listening to some set-up question by a reporter and responded to something on his mind. When questioned about it again he said, “I don’t know what you’re talking about.” Here is a little copy and paste from the Post …
“What? Why are you asking me that question?” Trump said to one reporter following a rally. Trump then ignored a wave of follow-up questions.
“Where did you hear that?” he said to another reporter. “I don’t know where you heard that.”
I think it’s an attempt to sink his campaign and it didn’t happen the way it’s being reported.