While no amount of security can guarantee against the possibility of an attack, major terrorist attacks around the world always serve as a clarion call, drawing people’s attention to security measures in their own towns, and many are increasingly beginning to turn their focus from indoors to outdoors and the perimeter surrounding the venues.
On Monday, May 22, in the British city of Manchester, an explosion happened near an entrance of Manchester Arena shortly after the ending of an Ariana Grande concert, killing 22 and injuring more than 50. The incident prompted venues including concert halls and stadiums not just in England and Europe, but across the U.S. and Canada as well to evaluate their security.