‘Learn from yesterday, live for today, hope for tomorrow.’—Albert Einstein
It was the end of a regular day at my hospital in the Bronx. As I was leaving my office, the trauma pager on my hip beeped and announced, “Mass casualty … shooter … all coming to the ER.”
I went to the ER, and although I was the first trauma attending to arrive, I found all my eager emergency medicine and surgery residents marking off their territories in each