Amid news of the destruction wrought by Hurricane Harvey, they were flashes of extraordinary human courage and heroism.
When a woman in labor was trapped in her apartment by floodwater, volunteers
formed a human chain to pull her out.
As
Texas Monthly put it
Nancy Koehn, a professor at the Harvard Business School and author of the forthcoming book
"Forged In Crisis,"
Click the audio player above to hear more from Nancy Koehn.