FacebookJust two days ago, top Xiaomi executive and former Googler Hugo Barra announced he was leaving China-based Xiaomi to return to Silicon Valley. And by “Silicon Valley,” he meant Facebook. In a post on Facebook, chief executive Mark Zuckerberg announced that Barra will joining Facebook as a VP of VR. “Barra is joining Facebook to lead all of our virtual reality efforts, including our Oculus team,” Zuckerberg wrote. “Hugo's in China right now, so here we are together in VR. It seems fitting. …