A Harvard psychologist reveals the best way to deal with infidelity

Daniel Shapiro is the founder of the Harvard International Negotiation Program & Associate Professor of Psychology at Harvard Medical School. In his recent book "Negotiating the Nonnegotiable," he explores how to handle those seemingly insurmountable disputes.

We asked him how to handle infidelity in a relationship. 

Produced by Grace Raver. Camera by Darren Weaver.

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