By JOE McDONALDBEIJING (AP) ¿ China's premier didn't say it in so many words, but the implied warning to Washington was blunt: Don't devalue the dollar through reckless spending. Premier Wen Jiabao's message is unlikely to be misunderstood at the White House. It is counting on Beijing to help pay for its stimulus package by buying U.S. bonds. China already is Washington's biggest foreign creditor, with an estimated $1 trillion in U.S. government debt. A weaker dollar would erode the value of those assets. "Of course we are concerned about the safety of our assets. To be honest, I'm a little bit worried," Wen said at a news conference Friday after the closing of China's annual legislative session. "I would like to call on the United States to honor its words, stay a credible nation and ensure the safety of Chinese assets." The appeal suggested the outlines of Chinese President Hu Jintao's stance when he meets with President Barack Obama at an April 2 summit in London of the Group of 20 major economies on possible remedies for the global crisis. Wen gave no indication whether Beijing wants changes in U.S. policy. But economists said his comments reflect fears that higher U.S. budget deficits from Washington's $787 billion stimulus package could drive down the dollar and the value of China's Treasury notes.