"I saw all this on television (not even censored)- open images of bombing and strafing of Vietnamese villages by helicopters. I remember a terrible image of a woman running from her house, which had been set afire. The helicopters were flying low, strafing people who were running from their houses. And we were the ones causing this. I felt then that the symbol of the Vietnam War was the helicopter, and that became my primary subject matter."
- Nancy Spero