The Mass Shooting Tracker reported that in 2019 there were 374 mass shootings in the U.S. Given this reality, it is essential to take all possible steps to protect your employees and visitors from harm. It should be a core requirement of every organization’s security plan to give serious consideration to how they will thwart an active shooter. Putting a security plan in place to guard against on-site violence begins at the perimeter, and security entrances are a strong first line of defense against the threat of an active shooter.