article_snippet.sent: As the Boston Marathon runners begin and, hopefully, finish the Boston Marathon runners exhausting run Monday, the lingering memories of the 2013 marathon blasts will be seen and felt in all sorts of ways.
article_snippet.sent: More public safety officials throughout the route, a finish line area that prohibits large bags, National Guard members in full uniform giving some sense of security -- those are the most obvious, visible changes.  
article_snippet.sent: With the luxury of some time and healing, Boston Marathon has moved on.
article_snippet.sent: As a former homeland security adviser for Massachusetts, I was intimately involved with the marathon planning; as a commentator for CNN, I saw the story evolve during that week.
article_snippet.sent: The quick decisions to move runners off Boylston Street, the ability of police officers to seal the large crime zone and to utilize the military to do so, the pivot of public health officials from tending to blisters and dehydration to forming makeshift triage centers.
article_snippet.sent: First responders, in particular the Boston police and the Red Cross, focused on getting families back together again by moving runners and spectators to Commonwealth Avenue, a few blocks from the finish line.
highlights_snippet.sent: Boston Marathon takes place Monday, two years after bombing, and sentencing phase of trial begins Tuesday .
  