British Union flags and Chinese flags fly together on the Mall in central London, on October 18, 2015. Chinese President Xi Jinping begins a four-day visit to Britain on Tuesday in which human rights issues are to be eclipsed by lavish ceremony and hardnosed business talk heralding a "golden era" in ties. AFP PHOTO / BEN STANSALL        (Photo credit should read BEN STANSALL/AFP/Getty Images)