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MARKETS: Bank stocks jump, World Bank warns of a crisis, trade deficit narrows

Yahoo Finance's Alexis Christoforous and Jared Blikre break down the latest market action after the US trade deficit narrowed in April, the EU announced details of $3.4 billion in tariffs on US goods to take effect in July, and the World Bank warns that the global economy could experience another 2008-type crisis if tariffs escalate into a trade war.