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NRA's LaPierre at CPAC: We must harden 'wide open target' schools 1:40

NRA's LaPierre at CPAC: We must harden 'wide open target' schools

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Heat players talk about wearing patches for Stoneman Douglas victims

Police high five students to 'show they care' after Florida shooting 2:00

Police high five students to 'show they care' after Florida shooting

Florida woman going 121 mph when she killed family, cops say 0:46

Florida woman going 121 mph when she killed family, cops say

West Broward High students stage walkout to protest gun violence 0:20

West Broward High students stage walkout to protest gun violence

Emotional plea to senators, 'look me in the eye.' 2:23

Emotional plea to senators, 'look me in the eye.'

Alligator removed from under truck on Land O' Lakes driveway 1:26

Alligator removed from under truck on Land O' Lakes driveway

Florida man arrested for throwing hot dogs at store employee 0:56

Florida man arrested for throwing hot dogs at store employee

Stoneman Douglas student greets West Boca Rotan students after march 0:42

Stoneman Douglas student greets West Boca Rotan students after march

Do you know what to do in an active shooter situation? This Florida sheriff's office can show you. 6:14

Do you know what to do in an active shooter situation? This Florida sheriff's office can show you.

Thirty years ago this week, America witnessed a tragedy: the explosion of Space Shuttle Challenger over Florida. The Challenger exploded 72 seconds after its launch, disintegrating 10 miles off the coast and killing a crew of seven, including a teacher. Courtesy NBC
Thirty years ago this week, America witnessed a tragedy: the explosion of Space Shuttle Challenger over Florida. The Challenger exploded 72 seconds after its launch, disintegrating 10 miles off the coast and killing a crew of seven, including a teacher. Courtesy NBC

Space Shuttle Challenger exploded 30 years ago over Florida with teacher on board

January 26, 2016 07:15 AM

More Videos

NRA's LaPierre at CPAC: We must harden 'wide open target' schools 1:40

NRA's LaPierre at CPAC: We must harden 'wide open target' schools

Heat players talk about wearing patches for Stoneman Douglas victims 1:44

Heat players talk about wearing patches for Stoneman Douglas victims

Police high five students to 'show they care' after Florida shooting 2:00

Police high five students to 'show they care' after Florida shooting

Florida woman going 121 mph when she killed family, cops say 0:46

Florida woman going 121 mph when she killed family, cops say

West Broward High students stage walkout to protest gun violence 0:20

West Broward High students stage walkout to protest gun violence

Emotional plea to senators, 'look me in the eye.' 2:23

Emotional plea to senators, 'look me in the eye.'

Alligator removed from under truck on Land O' Lakes driveway 1:26

Alligator removed from under truck on Land O' Lakes driveway

Florida man arrested for throwing hot dogs at store employee 0:56

Florida man arrested for throwing hot dogs at store employee

Stoneman Douglas student greets West Boca Rotan students after march 0:42

Stoneman Douglas student greets West Boca Rotan students after march

Do you know what to do in an active shooter situation? This Florida sheriff's office can show you. 6:14

Do you know what to do in an active shooter situation? This Florida sheriff's office can show you.