William Evans ran in the 2013 Boston Marathon and then led the Boston PD's field response from Boylston to Watertown.

For many of Boston's hotel security directors, the day started like so many other Marathon Mondays, a calm morning full of excitement and anticipation for the events about to begin in the quaint New England town of Hopkinton, 26.2 miles from the Marathon's finish line in Boston's historic Copley Square.

Underpaid or under-trained security officers are only one of the gaps in event security, according to a USA Today report. 

78 percent of Americans polled after the Boston Marathon bombing said that public surveillance is a good idea, despite privacy infringement concerns. 

The security planning for last week's Boston Marathon included preparation for a bombing emergency.

The Boston Marathon terror suspects, Tamerlan Tsarnaev, and his younger brother, Dzhokhar, are another example of the phenomenon of family-affiliated extremist and terrorist activities globally.