Certainly the US has put itself in a more and more difficult situation over the decades with repeated underhanded regime changes that have frequently led to chaos and bloodshed, making its allies increasingly leery of it. Electing Trump as President is a "Wow!" moment around the World. On the other hand, China is hardly the most dependable nation and there would be no craziness in North Korea if China had not protected the Kim's for decades! The tensions in the Korean peninsula are being created solely by North Korea with tacit Chinese approval. Talks won't accomplish much apart from an attempt by N Korea to extract more money from the West in return for promises that they won't continue to develop nukes (sure!). China doesn't want to put money into the endless pit that is the Kim's greed.