BOSTON, MA - JULY 04: Fireworks display during the Boston Pops Fourth Of July Fireworks Spectacular amid heightened security at Hatch Shell on July 4, 2015 in Boston, Massachusetts. (Photo by Paul Marotta/Getty Images)
BOSTON, MA - JULY 04: Fireworks display during the Boston Pops Fourth Of July Fireworks Spectacular amid heightened security at Hatch Shell on July 4, 2015 in Boston, Massachusetts. (Photo by Paul Marotta/Getty Images)