Dhaka, March 22 -- Asian markets limped into the weekend on Friday following a tepid lead from Wall Street as the optimism stoked by a dovish US Federal Reserve meeting gave way to long-running fears about President Donald Trump's tariff agenda.Traders took heart from US central bank boss Jerome Powell's comments that the impact of hefty levies imposed on imports from key partners would likely be transitional and from officials' forecasts that did not see a feared recession this year.That came days after China unveiled a range of measures aimed at boosting consumer spending and reigniting the world's number two economy.However, Trump's hardball trade policies continue to cast a dark shadow, keeping sentiment and appetite for risk in check.W...