“I’ve never seen so many people so excited about fruits and vegetables!” Too bad she didn’t see all the people so excited about traffic jams : The Secret Service and the D.C. police brought in three dozen vehicles and shut down H Street, Vermont Avenue, two lanes of I Street and an entrance to the McPherson Square Metro station . They swept the area, in front of the Department of Veterans Affairs, with bomb-sniffing dogs and installed magnetometers in the middle of the street, put up bar