With active-shooter events like , and March's Western Psychiatric Institute shooting in Pittsburgh becoming more common throughout the United States, people in all walks of life are being encouraged to prepare themselves in case of just such an occasion.
Those who work in office buildings and in schools may be the most vulnerable to an attack, but anyone could find themselves faced with a shooter.
A dramatic video named "RUN. HIDE. FIGHT." that details what to do if you find yourself involved in an active-shooter event was posted on YouTube in July by Ready Houston, a Texas-based emergency preparedness program that is a localized version of the Federal Emergency Management Agency's Ready.gov program.
The video's popularity has increased following the Newtown incident.
Check out the video above.