BEIJING (Reuters) -The cause of the crash of the China Eastern Airlines jet last week must be determined as soon as possible, state media said on Thursday, following a meeting of China’s highest decision-making body helmed by President Xi Jinping. Information about the March 21 crash, which killed all 132 people onboard, must be released in an open, timely and transparent manner, state media said in a report on the meeting of the seven-person Standing Committee of the Communist Party’s politburo, China’s top leadership. A nationwide safety inspection should also be launched to prevent as much …