When Good People Turn Bad - Philip Zimbardo in conversationWhen Good People Turn Bad - Philip Zimbardo in conversation
All In The Mind
In 1971, 23 American college students' lives were changed by the now notorious Stanford Prison Experiment. For the eminent psychologist responsible, Philip Zimbardo, the parallels to the atrocities at Abu Ghraib are palpable. In an exclusive Australian interview, he joins Natasha Mitchell, to reflect on the capacity in all of us to commit evil. It's a case of good apples put in bad barrels.
30:07•28 Jul 2007
When Good People Cross the Line: Philip Zimbardo on Evil and Heroism
Episode Overview
- Ordinary people can commit serious harm when dehumanisation, anonymity, and diffused responsibility are present.
- The Stanford Prison Experiment revealed how quickly people internalise roles and how fragile personal goodness can be in a toxic setting.
- Zimbardo acknowledges serious ethical problems in the experiment, including his conflict of interest as both researcher and prison superintendent.
- Abu Ghraib is presented as a modern “bad barrel”, where untrained soldiers, harsh conditions and permissive commands led to abuses resembling the Stanford study.
- Zimbardo argues that everyone holds potential for both evil and heroism, and that cultivating a “heroic imagination” is a key safeguard against doing harm.
“Most people, under specified conditions, where there's dehumanization at work, anonymity, diffusion of responsibility, can be drawn across that line and do things they could never imagine themselves usually doing.”
What can we learn from those who have battled addiction to power and cruelty rather than substances? This conversation on All In The Mind looks at how ordinary people can cross the line into doing terrible things – and how they can also become heroes. Psychologist Philip Zimbardo joins Natasha Mitchell to unpack the infamous Stanford Prison Experiment, which he now says should never be repeated.
You’ll hear how a mock prison in a Stanford basement, run with chilling realism, led healthy college students to become brutal guards and broken prisoners in a matter of days.
As Zimbardo puts it, “most people, under specified conditions… can be drawn across that line and do things they could never imagine themselves usually doing.” The episode walks through concrete examples: guards inventing humiliating “games” out of boredom, prisoners reduced to numbers like “416” and “8612”, and multiple emotional breakdowns that forced an early end to the study.
Zimbardo candidly admits his own ethical blind spots, describing how fellow psychologist Christina Maslach confronted him with the words, “they’re young men… and you are responsible for it,” jolting him out of his role as prison superintendent. Things then shift to Abu Ghraib, where Zimbardo served as an expert witness for a US soldier involved in abuses there.
Drawing parallels with his experiment, he argues that “bad barrels” – toxic systems and environments – can corrupt previously decent individuals, while still stressing personal responsibility. Yet this isn’t just a dark psychological horror story. Zimbardo also talks about the “banality of heroism”, highlighting ordinary people like whistle-blower Joe Darby and calling for a “heroic imagination” in children as a buffer against harming others.
If you’ve ever confidently said, “I’d never do that,” this conversation might have you asking harder questions about yourself, your surroundings, and what it actually takes to choose decency when the situation pushes the other way.
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