The entire 2,000-mile border between the U.S. and Mexico will be patrolled by unmanned aerial drones beginning Wednesday, the Department of Homeland Security said. These drones will join the three that already patrol portions of the border, and there will also be 1,200 additional National Guard troops deployed. These measures are part of the $600 million legislation signed by President Barack Obama to increase border security in response to the escalating drug violence in Mexico. Violence continued on Tuesday, when eight people were killed when attackers hurled Molotov cocktails into a bar in Cancun. Last week, 72 migrants were allegedly murdered by a drug cartel. There was, however, a glimmer of good news out of the drug wars: A drug kingpin known as “the Barbie” was arrested Tuesday.