High securty alert in the D.C. Metropolitan Area due to the Boston bomb explosions.
Security outside the White House closed down the Pennsylvania Ave... News Photo 166721944Alertness,Capital Cities,Closed,Height,Horizontal,Human Interest,International Landmark,Lafayette Square,Pennsylvania Avenue,Security,Street,USA,Washington DC,White House - Washington DCPhotographer The Washington PostCollection: The Washington Post 2013 The Washington PostWASHINGTON DC: APRIL 15 Security outside the White House closed down the Pennsylvania Ave street near Lafayette Park due to a high security alert in Washington, D.C. on April 15, 2013. Yellow tape was put up to prevent tourists from getting close to the White House fence. High security alert in the D.C. Metropolitan Area is raised due to the Boston bomb explosions. (Photo by Marvin Joseph/The Washington Post via Getty Images)