Where is America’s southern border? Look on a map and you can see the line where America ends and Mexico begins, a line along part of which Donald Trump tried to build his wall.
Justin Campbell will tell you that the maps are wrong, or at least disclose only half the story. He is a historian and former US soldier who served with Joint Task Force Six (now called Joint Task Force North). It is a military unit initially set up in 1989 to wage the “war on drugs”, then, after 9/11, to combat terrorism, too, and now also to stem migration.
