Thread: television show about lockdowns

I am hoping someone knows what channel and what show this segment was on - I very badly want to find it so that I can share it with colleagues.

I saw a great segment about lockdowns in schools within the past few days - maybe Friday or Saturday?? The segment involved a high school and volunteers that went through their schools' lock down procedure. The volunteers were surprised during the drill by former police officers posing as the attackers, using flashlight as their "weapons". If they shined the flashlight on someone they were "dead". The former officers helped the student by giving them real ideas for what to do in the even of a lock down. Basically - think on your feed and break the rules if you need to to get safe.

If anyone saw this program - please post - so that I can, hopefully find it again, too!

Thanks!