Dirt poor, Hum Huy ekes out a living farming with his wife, eight children and brother.

CNN: SELECTIVE MEMORIES

Tuy Kin no longer admits to knowing Hum Huy, though she mentioned him and the camp commandant, known as Deuch, in a 1986 confession.

CNN: SELECTIVE MEMORIES

Not far from his home lives Hum Huy, 45, often described as one of the two most feared guards at Tuol Sleng (the other was a man named Peng).

CNN: SELECTIVE MEMORIES

In their research for Communities First, Money Second: Using Social Media to Build Emotional Capital in Your Organisation, Huy and Shipilov surveyed over 1, 000 executives, and conducted studies in 34 companies.

FORBES: How Social Media Can Boost Profits

She had never believed anyone would ever want her because of the ugly patchwork of scars that banded across her back and pitted her arm, but Bui Huy Toan seemed to love her more because of them.

MSN: Vietnam's 'napalm girl' comes to terms with iconic photo