"After Multiple tragedies, how Colorado schools are securing the classroom" PBS NewsHour 6/14/2019

Excerpt

SUMMARY:  School shootings have become a tragic reality of modern American life.  How can school administrators prepare for the worst-case scenario?  John Ferrugia of Rocky Mountain PBS in Denver reports on how Colorado’s multiple deadly school shootings in the past 20 years have driven the state to develop new safety protocols -- some of which have been adopted across the country.