Jasper Schuringa, a Dutch passenger on Northwest Flight 253 on Christmas Day, helped prevent the Yemeni bomber from setting off an explosive device on the flight, leaping over seats to subdue the terrorist.

Would you have done the same?

Philip Zimbardo, a professor at Stanford University, thinks there's a good chance you would have, and as one of the country's sharpest observers of human behavior in extreme circumstances, he would know.

(Continue reading The Making of a Hero at Newsweek)

Also, watch or read an interview with Jasper on ABC Morning Show…