These 3 words can be the most gut-wrenching thing doctors ever hear. Here's why.

Want to hear those three bone-chilling words? He first says 'em at 7:29.

The thought of doctors screwing up is terrifying. I'm not here to deny that fact. But if a doctor makes a mistake, should they be shamed into silence, or should the culture of medicine be open enough that others can learn from that mistake and overall care can improve?