Dollar holds ground after Fed's hawkish hold U.S.-Iran deal eases oil prices, aids risk sentiment Yen's renewed slide under intervention watch HONG KONG, June 18 (Reuters) - The U.S. dollar clung to a more than two-month high on Thursday after a hawkish hold triggered rate-hike bets despite a U.S.-Iran deal, while the yen weakness drew fresh verbal warnings from Japanese officials.