US lawmakers formally ask Zuckerberg to testify on data row
US lawmakers on Friday asked Facebook CEO Mark Zuckerberg to explain how the data of 50 million users was exploited, at a congressional hearing. In a letter addressed to Zuckerberg, the lawmakers said, "The hearing will examine the harvesting and sale of personal information" from the users. Earlier, Zuckerberg had said he'd be "happy" to testify before the Congress.