From Reuters.co.uk:

A doctor who blew the whistle on China’s SARS cover-up in 2003 has been freed from months of house arrest but is barred from speaking to media or travelling abroad, a source close to the family says.

The government placed Jiang Yanyong, 73, in custody last year a few months after he wrote a bold letter to China’s top leaders asking for a politically sensitive re-appraisal of the Tiananmen Square pro-democracy protests crushed by the army in 1989.