Holding American flags, Boston Marathon bombing survivor Jeff Bauman, left, bumps fists with Carlos Arredondo near the finish line of the the 118th Boston Marathon, Monday, April 21, 2014, in Boston. (AP Photo/Elise Amendola)
A police officers wears earplugs by Wellesley College during the 118th Boston Marathon, Monday, April 21, 2014, in Wellesley, Mass. (AP Photo/Mary Schwalm)