US 30-year yields hit highest level since 2007 as war, oil worries fester
By Ankur Banerjee SINGAPORE, Aug 18 (Reuters) - U.S. 30-year Treasury yields rose to their highest level since 2007 on Tuesday as stalled talks to end the U.S.-Iran war and worries of an imminent escalation sent oil prices above $90 a barrel, fanning fears of inflation and jolting markets.