A UPS cargo plane crashed at a Louisville, Kentucky, airport where the company operates its largest package delivery hub. UPS calls the giant center Worldport. The facility at Muhammad Ali International Airport employs some 20,000 people, making UPS the largest employer in the Louisville area. Worldport processes 2 million packages per day in a facility the size of 90 football fields. More than 300 flights take off and land from the facility each day. Louisville’s location in Kentucky puts it within four hours of flight time to 95% of the U.S. population. It serves 200 countries around the world.