The IMF has downgraded its global growth forecast and warns a prolonged war in Iran could trigger a recession. IMF Managing Director Kristalina Georgieva says markets need to be more cautious in this era of ongoing uncertainty. She speaks with Bloomberg’s Francine Lacqua at the group's Spring Meetings in Washington. -------- More on Bloomberg Television and Markets Like this video? Subscribe and turn on notifications so you don't miss any videos from Bloomberg Markets & Finance: https://tinyurl.