http://www.guardian.co.uk/world/2009/mar/14/china-us-economy
......There was friction in January when Timothy Geithner, the US treasury secretary, said Obama believed China was manipulating its currency, but the US administration subsequently rowed back.
Analysts said Wen's remarks were a coded message to Washington to exercise caution. "China is telling the US to be careful, not to overspend and keep an eye on the dollar," Kelvin Lau, regional economist at Standard Chartered in Hong Kong, told the Associated Press.
Washington needs to continue selling treasury notes to fund its $787bn stimulus package. Last month Hillary Clinton, the secretary of state, urged China to maintain its stock as she visited the country.
"They are worried about forever rising deficits, which may devalue treasuries by pushing interest rates higher," JP Morgan economist Frank Gong told Reuters. Beijing is aware that abrupt action would punish the dollar, damaging the value of existing holdings and affecting the sale of goods to its biggest export market.
Turning to the wider economic picture, Wen said China would find it difficult, but possible, to reach its 8% growth target. Independent economists suggest the figure could be as low as 5% - enviable to most major economies, but potentially too low to keep unemployment down.
China's authorities are worried about the prospect of millions of laid-off workers returning to the disgruntled provinces.