Rocklin, California (CNN) — When I visited Rocklin Elementary school, I sat in on a lesson with a third-grade class – a lesson I would never have imagined as a father, a journalist or a trauma surgeon ...

US HOW IT WORKS. THESE CIVILIANS ARE AT SHOCK TRAUMA TO LEARN A LIFESAVING SKILL. HOW TO STOP A WOUND FROM BLEEDING UNTIL HELP ARRIVES. THIS IS SOMETHING THAT LAYPEOPLE, CIVILIANS CAN DO TO ACTUALLY ...