BOSTON, MA - APRIL 27: A police dog checks the area around the site of the Boston Marathon Bombings before the Prime Minister of Japan, ShinzØ Abe arrives to place a wreath on April 27, 2015 in Boston, Massachusetts. On April 15, 2013, two pressure cooker bombs killed three and injured an estimated 264 others during the Boston marathon. (Photo by Scott Eisen/Getty Images)
