Secretary of state tony blinken just wrapped up a big speech today on china. he says the u.s. stands ready to strengthen diplomacy with china in this charged moment for the world, while also offering this characterization of the xi regime. >> china is the only country with both the intent to reshape the international order and increasingly, the economic, diplomatic, military and technological power to do it. under president xi, the ruling communist party has become more repressive at home and more regressive abroad. >> cnn has seen documents indicating china will propose a sweeping security de...