While you enjoy a hot, sunny weekend, thousands of computer nerds will be inside, hacking on their computers. But in a good way. June 1 is the National Day of Civic Hacking. Events are taking place in 95 locations. Participants will develop apps that use government data sets. The event has the backing of the White House plus several corporate partners. Kevin Curry, a civic hacker and the director of The Brigade, Code for America’s Volunteer Engagement Program, joins the Federal Drive with a preview of the event.