Public works vehicles get their groove on at Touch Truck Ballet

Parking Lot 7 at RFK Stadium sounded like a rush-hour nightmare on Saturday morning. Horns blaring. Engines gunning. Sirens whirling. And over all the din, the familiar pulse of Pharrell Williams's "Happy." This wasn't a traffic jam but the D.C. Truck Touch, the city's annual free public-works-vehicle petting zoo. For the average 4-year-old, just getting behind the wheel of a stationary forklift was a thrill, but for first time, the Department of Public Works decided that the cars and trucks and...