The Latest: Another day of crushing Wall Street losses as China retaliates

World shares slid downward, U.S. futures fell and Wall Street appeared on track for another day of crushing losses Friday as investors counted the potential costs of U.S. President Donald Trump’s latest set of tariffs — including China's retaliatory match of a 34% tariff on imports of all U.S. products.Trump announced a minimum tariff of 10% on global imports and much higher taxes on products from China, the European Union and even smaller countries like Vietnam, slapped with tariffs