JAKARTA: China's premier said on Wednesday major powers must keep their differences under control and avoid "a new Cold War", in a thinly veiled reference to Washington, as top Asian and US officials gathered for talks in Indonesia.Beijing has expressed concern about US-backed blocs forming on its doorstep, while facing disputes with other powers in the region over the South China Sea and other issues."Disagreements and disputes may arise between countries due to misperceptions, diverging interests or external interferences," Li Qiang said at the start of an ASEAN-plus-three...