For central banks, hope for precision fades amid pandemic uncertainty

WASHINGTON/TOKYO (Reuters) - Central bankers who have spent a generation researching how their words influence the economy and honing the craft of "forward guidance" are now effectively tongue-tied by a health crisis that has no clear destination yet to guide households and investors toward.With everything from depression to a sharpish recovery possible over the next six months, the language from Washington to Tokyo has included broad pledges of central bank support for years to come, but little..