CHAD WOLF: Canada can't expect free trade while leaving our northern border vulnerable

The longest international border in the world has a security problem, and Canada is not treating it with the urgency it deserves.Recently, Department of Homeland Security Secretary Markwayne Mullin laid out a sobering picture of how people from 78 nations have been apprehended crossing the northern border. U.S. agents are now arresting a terrorist on the watch list nearly every week at the northern border, and over the past year alone, enough fentanyl to kill 17 million Americans has been seized