Sally (Fink) Singer still cries over the spilled milk. Yes, it happened more than 80 years ago. And at the age of 100, Sally knows that her siblings – Anne (99), Sol (97), and Ruth (95), who to this day remain inseparable – have long since forgiven her. But the pangs of guilt and hunger linger.

One morning in 1978, Theary Seng awoke alongside her younger brother in their prison cell in Boeng Rai Security Center, about 100 kilometers south of their hometown of Phnom Penh, Cambodia. The children’s mother had been in the cell the night before, but now she was gone.