Inside school where teachers carry guns

callisburg texas school district armed teachers lavandera pkg_00000401.jpg

Inside school where teachers carry guns

While the nation debates whether teachers should carry guns to protect students from armed intruders, the question is already settled in one Texas school district, where educators have had firearms on campus for years. CNN's Ed Lavandera reports.

02:50 - Source: CNN

Guns in America 15 videos

callisburg texas school district armed teachers lavandera pkg_00000401.jpg

Inside school where teachers carry guns

02:50

Now playing

- Source: CNN

TINLEY PARK, IL - OCTOBER 18: Pistols are offered for sale at Freddie Bear Sports on October 18, 2012 in Tinley Park, Illinois. Facing a $267.5 million fiscal 2013 budget gap, Cook County, which includes the City of Chicago and suburbs, has proposed a tax of 5 cents per bullet and $25 on each firearm sold at gun and sporting goods stores in the county. Fred Lutger, who has owned Freddie Bear Sports for 35 years, is concerned with the impact the tax will have on his store which is located about 2 miles inside the Cook County line. (Photo by Scott Olson/Getty Images)

By the numbers: Gun deaths in America

00:47

Now playing

- Source: CNN

Glendale, UNITED STATES: A man chooses a gun at the Gun Gallery in Glendale, California, 18 April 2007. The massacre at Virginia Tech has ignited fresh talk in the Democratic-led US Congress about tightening US gun laws but it is doubtful enough lawmakers will tackle the politically charged issue. With so many citizens in love with their guns and defensive of their right under the Constitution to keep and bear arms, politicians are reluctant to take on gun owners or the powerful gun lobby. AFP PHOTO/GABRIEL BOUYS (Photo credit should read GABRIEL BOUYS/AFP/Getty Images)

What stops the mentally ill from buying guns?

02:00

Now playing

- Source: CNN

A row of rifles is seen on display at a National Rifle Association outdoor sports trade show on February 10, 2017 in Harrisburg, Pennsylvania.
The Great American Outdoor Show, a nine day event celebrating hunting, fishing and outdoor traditions, features over 1,000 exhibitors ranging from shooting manufacturers to outfitters to fishing boats and RVs, and archery to art. / AFP / DOMINICK REUTER (Photo credit should read DOMINICK REUTER/AFP/Getty Images)

The NRA used to support gun control. Here's why

01:45

Now playing

- Source: CNN

Teron McNeil March for Life flag

The messages kids want you to see

02:15

Now playing

- Source: CNN

Stand Up Parkland Shooting Teens mashup v1

They hope you remember what they'll never forget

02:07

Now playing

- Source: CNN

Carpenter Greg Zanis (C) who drove from Chicago unloads his crosses outside the First Baptist Church which was the scene of the mass shooting that killed 26 people in Sutherland Springs, Texas on November 8, 2017.
A gunman wearing all black armed with an assault rifle opened fire on a small-town Texas church during Sunday morning services, on November 5, killing 26 people and wounding 20 more in the last mass shooting to shock the United States. / AFP PHOTO / MARK RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images)

Man builds crosses for shooting victims

00:55

Now playing

- Source: CNN

President Donald Trump applauds the audience after speaking at the National Rifle Association annual convention in Dallas, Friday, May 4, 2018. (AP Photo/Sue Ogrocki)

Pres. Trump's complex relationship with guns

02:37

Now playing

- Source: CNN

FILE - In this June 25, 2010, file photo Britain's Prince Harry fires a Colt M4 assault riffle on a United States Military Academy range in West Point, N.Y. The Defense Department is searching for the successor to the M4 combat rifle and gun makers are loading with lobbyists to win the work. Colt Defense of West Hartford, Conn., had an exclusive deal to provide M4s to the U.S. military and didnt need a hired gun looking out for its interests in Washington. (AP Photo/Chad Rachman, Pool, File)

History of the modern assault-style rifle

01:40

Now playing

- Source: CNN

gun background checks explainer

Flaws in gun background check system cost lives

01:58

Now playing

- Source: CNN

NS Slug: FL: PUBLIX DIE-IN HELD AGAINST CANDIDATE ADAM PUTNAM Synopsis: Footage of several Marjory Stoneman Douglas students participating in a protest at a Coral Springs, FL Publix Video Shows: - Footage of several Marjory Stoneman Douglas students participating in a protest at a Coral Springs, FL Publix by drawing chalk outlines in the parking lot and lied down for exactly 12 minutes in the store. - MSD student David Hogg called for a boycott of Publix due to them donating to gubernatorial candidate Adam Putnam, who has an "A" rating from the NRA. Keywords: FLORIDA PUBLIX PROTEST NRA GUN SUPPORT

Protesters hold 'die-in' at grocery store

01:18

Now playing

- Source: CNN

Gun laws ad wars

Activists, NRA wage ad war over gun reform

02:03

Now playing

- Source: CNN

jackson mittleman high school walkout

Newtown student: This is why we're walking out

00:57

Now playing

- Source: CNN

WASHINGTON, DC - JUNE 22: (AFP OUT) Ivanka Trump participates during the American Leadership in Emerging Technology Event in the East Room of the White House June 22, 2017 in Washington, DC. (Photo by Olivier Douliery-Pool/Getty Images)

Ivanka Trump: Arming teachers 'not a bad idea'

01:36

Now playing

- Source: CNN

buying guns online orig nws_00003310.jpg

What the law says about buying guns online

01:55

Now playing

- Source: CNN