Article Photos: Oklahoma City Memorial Marathon officials will be smart, but they do not want to give into fear 28/44

Medical workers aid an injured woman at the finish line of the 2013 Boston Marathon following two explosions there, Monday, April 15, 2013 in Boston. Two bombs exploded near the finish of the Boston Marathon on Monday, killing at least two people, injuring at least 23 others and sending authorities rushing to aid wounded spectators. (AP Photo/Charles Krupa) ORG XMIT: MACK139