Taco Bell is capitalizing on the roving food cart trend with a cross-country tour giving away free tacos. (Insert free gastrointestinal problem jokes here.) They’ll be handing out tacos outside the GW Student Center from 11:30 a.m. – 3:30 p.m. before moving on to Rosslyn, near N. Moore and 19th Streets around 4:30 p.m. You can try out their fiery Volcano or regular crunchy tacos.