Secretary of State Rex Tillerson said on Saturday the U.S. is in direct communication with North Korea and tensions between the two countries need to cool.“The whole situation is a bit overheated right now,” said Tillerson, according to media reports. “If North Korea would stop firing its missiles, that would calm things down a lot.”Tillerson, the nation’s top diplomat, made those comments during a day of meetings in China with top officials and the Chinese President Xi Jinping.