jordan robertson covers security for bloomberg news and gordon chang, author. we'll continue this conversation after this quick break. also coming up, why is top talent such a top priority for tech companies? and how important are engineers in particular? we'll dig into the value of a good engineer with twitter's former head of engineering mike an ots later in the show. -- mike abbots later in the show. ♪ >> welcome back to "bloomberg west," i'm emily chang. we turn to our top story, what caused china's internet outage and just how powerful is the great firewall? with us from new york is gordon chan, author of "the coming collapse of china" who lived and worked in china for many years and cory johnson along with jordan. you mentioned some upcoming challenges at baidu and this company benefited from the chinese government control on the internet, companies like google leaving the country because they don't want to deal with censorship issues that come with operating in china. tell us more about these potential challenges coming for baidu down the road? >> we hav