Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

CNN's Sara Sidner shows you what a pound of C-4 on a robot arm does in light of the Dallas Police tactic against a sniper.
CNN's Sara Sidner shows you what a pound of C-4 on a robot arm does in light of the Dallas Police tactic against a sniper.

    JUST WATCHED

    How Dallas police used a robot bomb to stop shooter

MUST WATCH

How Dallas police used a robot bomb to stop shooter

CNN's Sara Sidner explains how police used a robot and a bomb to stop the Dallas shooter.

How Dallas police used a robot bomb to stop shooter

CNN's Sara Sidner explains how police used a robot and a bomb to stop the Dallas shooter.