Trump's fresh Iran threats give investors a risk-off reality check

President Donald Trump's threat to bomb Iran back to the Stone Age has sharply raised stakes in a war now in its fifth week, a big setback to investors hoping for a swift end to a conflict that is squeezing oil supplies and ‌fanning inflation. Global markets recoiled on Thursday, with stocks and bond prices sliding, oil surging and the dollar firming after Trump gave little clarity on when the conflict might end.