Barclays economists said in a report that although there seemed to be no country in Asia manipulating exchange rates last year, this may not prevent the United States from targeting Asia's foreign exchange policy. Barclays 'calculations of changes in foreign exchange reserves suggest that the weak dollar in February led to dollar buying in Asia, which may continue into March. The longer the US dollar is under pressure, the more likely Asian central banks will be to intervene when trade pressures intensify to prevent their currencies from strengthening. The bank added: "In our view, the U.S. government may use currency manipulation to justify various actions, including tariffs. (Jin Shi)