Kate Duguid and Adam Samson in New York and Colby Smith in Washington The $24tn US Treasury market has been hit with its most severe bout of turbulence since the coronavirus crisis, underscoring how big swings in international bonds and currencies and jitters over US rate rises have spooked investors. The Ice BofA Move index, which tracks fixed income market volatility, has reached its highest level since March 2020, a time when deep uncertainty about how the pandemic would affect the...