The Unguarded U.S.-Canadian Border

U.S. Border Patrol Agent Andrew Mayer walks onto a frozen lake during a patrol on the lake that is split between Canadian territory to the right and the U.S., near Norton, Vermont, on March 22, 2006. Joe Raedle/Getty Images

Commentary

Canada to our north occasionally becomes annoyed with us, sometimes for good reasons, sometimes not so much, usually over trade issues, but there hasn’t been a need to defend the border for a long time.