Free to read article "Zuckerberg seeks to tighten grip as Facebook results surge": on.ft.com/1Tye1Qs<br /><br />► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />Daniel Garrahan provides Monday’s top stories, including a sell-off halting trading on China’s stock markets, protests continuing over Saudi Arabia’s execution of a dissident Shia cleric and Facebook’s founder Mark Zuckerberg planning to build a robot butler.<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br /><br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
