Wall St lower as financials stocks weigh, oil drops

Bank stocks led Wall Street lower on Thursday, mirroring global markets, as bond markets rallied and oil prices fell. Globally 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. The ECB started buying back corporate bonds on Wednesday, which along with the concerns about Britain's referendum on European Union membership, pushed British and