Military officials believe Canadian immigration policies are creating a "favorable" environment for what the U.S. government deems to be potential terrorists seeking entry into the United States from the north, according to an internal briefing crafted by a U.S. Northern Command joint task force. Officials at the Joint Task Force-North believe a "large population" of so-called special-interest aliens, or SIAs, in Eastern Canada presents the "greatest potential for foreign terrorists' access to the homeland," according to a Jan. 15 briefing...