How mini sponges could save lives on the battlefield

Aired: 11/7/2014 | 0:06:43 | Clip
Combat medics have one mission: keep the injured alive until they can be safely treated elsewhere. But while survival rates have improved dramatically in the last few decades, one of the biggest challenges that medics still face is uncontrolled bleeding. The NewsHour’s Cat Wise reports on a new invention that stops bleeding much faster than traditional gauze.