
One of the largest changes to border enforcement was the extension of full border patrol authority to a 100-mile zone adjacent to the boundary and the increasing use of spot checks in bus terminals and other traffic hubs. The border is no longer simply a line, but a dispersed and networked enforcement practice that even extends beyond the territory of the United States. As the Customs and Border Protection website explains: “The border is not merely a physical frontier. Effectively securing it requires attention to processes that begin outside U.S. borders, occur at the border and continue to all interior regions of the U.S.” Canadian border patrol also has stepped up its enforcement to complement the US securitization of the border and cooperates with a variety of US agencies in Integrated Border Enforcement Teams (IBET).