Happened during April of 2010 during the Nuclear Summit at the DC Convention Center. Tons of world leaders poured into DC and the surrounding area was completely locked down. 10 ft high barriers, dump trucks blocking avenues to the surrounding streets of the convention center, check points, large military/police presence, etc. It was a nightmare for those of us living in the Mt Vernon/Chinatown area.

Anyways, the large troop carriers and Mack trucks were operating in the area as well to move people around or change traffic flow by blocking different streets off. During the evening commute a woman who worked at the National Academy of Science was biking up one of the cut off streets; she was struck and killed by the truck as it was backing up. A very sad event.

link: http://www.washingtonpost.com/wp-dyn/content/article/2010/04/12/AR2010041201761.html