Facebook admits using controversial PR firm to attack George Soros after latest scandal

Facebook has admitted it used a controversial PR firm to "investigate" George Soros, a Facebook critic who is the subject of anti-Semitic conspiracy theories. In a post that has since provoked an outrage of its own, Facebook admitted it used the Definers PR firm as part of an effort to discredit people who raised questions about whether it was good for society. Bosses including Mark Zuckerberg and Sheryl Sandberg had denied any knowledge that the firm had been hired or what it was doing. But now it has admitted the company had hired Definers to "do work" on Soros, following his criticism of the site at the start of the year. Uber has halted testing of driverless vehicles after a woman was killed by one of their cars in Tempe, Arizona.