Dissident Chen calls US Congress for help
4 May 2012 Last updated at 07:31 BST
Chinese dissident Chen Guangcheng has telephoned a US Congressional hearing to plead for help in his attempts to leave China with his family.
Mr Chen said he feared for the safety of his family and wanted to meet visiting US Secretary of State Hillary Clinton face-to-face.
Mrs Clinton and Treasury Secretary Timothy Geithner are in Beijing for annual bilateral trade and strategy talks.
Jane Little reports.