(Bloomberg) -- A new era of elevated borrowing costs is potentially underway as war-driven inflation angst intensifies in the US bond market, sending 30-year yields toward a two-decade high above 5%.Most Read from BloombergWinners and Losers From Trump and Xi’s Beijing Summit TalksHormuz Oil Flows Creep Higher as More Supertankers ExitUS, Iran Stall on Hormuz Reopening as Oil Supplies TightenTrump Gets Revenge on Republican Who Voted to Convict HimHow Keir Starmer Imploded and Plunged Britain In