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For the last 12 years, LaToya Ruby Frazier has photographed her family as it deals with reality on the American post-industrial front lines in Braddock, Pennsylvania. The images, she says, show a family struggling to survive.

Want to help prevent online bullying? Comment on Facebook | ideas.ted.com

When TED posted the talk by Monica Lewinsky, the haters came out in force. TED’s social media editor, Nadia Goodman, describes what happened — and how she and her team countered the vitriol, one comment at a time.

The science of laughter | ideas.ted.com

British cognitive neuroscientist Sophie Scott studies vocal communication. She explains why looking into giggles and mirth is important … and shares ways she makes subjects laugh in the lab.

The state of affairs: Cheating in the age of transparency | ideas.ted.com

Esther Perel explains why she wants to introduce a new conversation about affairs, to examine why they happen, what they mean, and what can be done once they are exposed.

The unintended consequences of being "tough on crime" | ideas.ted.com

“We’re in this exciting moment where we’ve had 40 years of being ‘tough on crime,’ and we’ve finally come to recognize that it really hasn’t worked very well,” says sociologist Alice Goffman bluntly. America needs to think differently.

Suki Kim teaching a class at  Pyongyang University of Science and Technology, 2011.

Born and raised in Seoul, Suki Kim posed as an English teacher at an all-male university in Pyongyang run by evangelical Christians; she spent six months teaching the 19-year-old sons of North Korea’s ruling class. In this excerpt from her book, she describes the experience.

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The current approach to treating Ebola is makeshift, at best. A doctor shares the reality of life on the humanitarian frontline in Liberia, while Bill Gates calls for a new approach to treating epidemics.