Question: Which Harper Adviser Said This?

As I predicted a few years ago, the escalation of police response from a polite knock on the door and discussion to SS type raid is the direct result of gun licensing and registration coupled with the pogrom of cultural genocide that has been going on for the last decade and more.  Sooner or later they are gonna start shooting us first and asking questions later.

Answer: Mike Ackerman, on the government's fire-arms advisery panel.

As noted in the comments: Mr. Ackerman also suggested that Ryan Keon painted cross-hairs on his own signs.