Asian stocks battled to hold ground on Tuesday after a furious flight from US assets undermined Wall Street and the dollar, while concerns about the independence of the Federal Reserve piled fresh pressure on Treasuries.Relatively limited losses in Asia did spark talk that funds could be reallocating money to equities in the area, though the impact of tariffs on economic growth remained a major drag.President Donald Trump’s increasingly vocal attacks on Fed Chair Jerome Powell for not cutting interest rates saw Wall Street indexes shed around 2.4 per cent on...