Two days after Facebook unveiled simplified privacy controls, the furore over its perceived missteps is not dying down.

On Friday Congressman John Conyers, head of the House Judiciary Committee, sent a letter to Facebook asking it to cooperate with federal regulators looking into its privacy policies. Mr Conyers also sent a similar letter to Google, which is facing scrutiny after it admitted collecting wifi data.

Mr Conyers’ letter followed a conference call on Thursday during which several privacy advocates who had given Facebook credit for their effort on Wednesday took a harder line against the company and called for federal regulation of social networking sites. Read more