A new documentary looks at how gun violence has led to school lockdown drills becoming a universal part of childhood in America.

That sparked the creation and explosive growth of an entire industry of active shooter preparedness products now worth an estimated $3 billion.

Lockdown one is by far our most popular.

It works on any door.

Sirens and strokes throughout the organization are now initiated.

It can move.

It has handles and you literally could move with the table if so desired.

Right after Sandy Hook happened,

teachers and schools started calling us.

When Sandy Hook happened, we realized that the children were at risk,

we said we've got this great technology.

And now we're in 4,000 schools across the country.

The documentary called Thoughts and Prayers

is available to stream now on HBO Max. I recently

spoke with the filmmaking team behind it, Zachary Kanapari and Jessica Dimock. Zach and Jessica,

welcome to the News Hour. Thanks for joining us. Thank you. Thanks for having us. I wanted to get

into the story behind the film more in just a moment, but Zach, kick us off here and just tell us a little bit more about some of those pitches we just heard, some of the products we just heard about, the fact that this is a whole industry.

Most people don't even know about that's cropped up in recent years.

What more should we understand about that?

Yeah, the film documents sort of the various different training programs and products and cultural

effects of all these things across America due to gun violence.

And the products, you know, the scene that you guys just watched was from the National

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