Woo Suk Hwang revisited

South Korean researcher reveals the fallout he faced from his tip-offs about former cloning fraudster Woo Suk Hwang.

Ten years ago, Woo Suk Hwang rose to the top of his field before fraud and dodgy bioethical practices derailed his career. Can a scientific pariah redeem himself?

Why did Hwang fake his data, how did he get away with it, and how was the fraud found out?

A quick guide to the people behind the Woo Suk Hwang story.

Do our only cloned primates come from the lab of Woo Suk Hwang's colleague?

A chronology of Woo Suk Hwang's stem-cell research.

Study brings therapeutic cloning one step closer.

Canine eggs are tough to crack, but clone finally survives.

Government sets up international hub for stem-cell technology.

Famous co-authors part company over egg-donation controversy.

Fertility specialist admits buying human eggs.

Ethical allegations cause Woo Suk Hwang to step down.

Calls for fuller investigation as national hero confesses.

Korean star faces challenges over data.

US partner urges Korean cloner to retract landmark paper.

South Korean television airs unconfirmed allegations over landmark research.

Researchers assess their field after Woo Suk Hwang's revelations.

The possibility that Woo Suk Hwang's cloning experiments were faked threatens to undermine confidence in stem-cell research.

No evidence found for nine out of 11 stem cell lines.

It's back to the start for research on patient-specific stem cells.

South Korean cloning scandal deepens.

Even high-profile papers may violate conflict-of-interest policies.

Advanced Cell Technology plans to tread cautiously on the ground left vacant by the collapse of a South Korean scientist's claims to have cloned a human embryo, as David Cyranoski reports.

Hwang charged with fraud, embezzlement and violation of bioethics law.

Korea's fallen star begins his defence.

Disgraced stem-cell researcher may face time in jail.

Cloning pioneer gets two years for embezzlement and bioethics breach.

Woo Suk Hwang's former collaborator emerges from the shadow of scandal.

How not to promote your latest research findings in the media.

The first cloned dog was born at some cost, and there needn't be many more.

It's time for the South Korean government to launch an investigation into how eggs were obtained for a ground-breaking stem-cell experiment.

South Korea would benefit from investigating what went wrong in its leading stem-cell lab.

The trajectory of the Hwang scandal highlights the shortness of the path between unethical behaviour and outright misconduct.

In the wake of the Hwang scandal, journals have been reviewing their refereeing procedures. Following a survey of experts, here are Nature's thoughts on papers about cloning, with an invitation to comment.