U.S. President Joe Biden's top security adviser and China's highest-ranking diplomat held hours of "candid, substantive and constructive" talks over the weekend in Malta, their governments said Sunday, amid lingering tensions between them.The White House said that National Security Adviser Jake Sullivan and Wang Yi, a Chinese Communist Party Politburo member in charge of foreign affairs, agreed to "maintain this strategic channel of communication and to pursue additional high-level engagement and consultations in key areas" between the two countries "in the coming months."Without going into…READ FULL ARTICLE