Wall St. drops with banks and oil as bonds rally

Banks led Wall Street lower on Thursday, mirroring global stocks, as oil prices fell and bond markets rallied amid demand for safe haven assets. Oil prices snapped a three-day rally as traders took profits, pulling commodity-related stocks lower. Global stocks were hit after European Central Bank President Mario Draghi warned that monetary policy alone would not avert the risk of Europe suffering lasting economic damage from weak productivity and low growth.