Two years after a shooter killed 17 students at Marjory Stoneman Douglas High School in Florida, schools around the country are running regular active shooter drills. Vladimir Duthiers takes CBS News into one of these drills conducted with fourth grade students.

Advertisement
Code: MADIAOFF8. Coupon code is required.

More videos

NBA 27 Feb 2020 04:42 CET

GRIZZLIES at ROCKETS