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National Guard troops deployed to prevent Baltimore spiralling into mayhem on Tuesday as President Barack Obama warned that recent incidents "raise troubling questions" about the policing of black communities. Violence and looting erupted in Baltimore on Monday after the funeral of 25-year-old African-American man Freddie Gray, who died after suffering severe spinal injuries during a police arrest. "Since Ferguson... we have seen too many instances of what appears to be police officers interacting with individuals -- primarily African American, often poor -- in ways that raise troubling questions," he said.
By Sam Forgione NEW YORK (Reuters) - Two of three major U.S. stock indexes rose modestly on Tuesday as Merck posted strong earnings and IBM raised its dividend, while European stocks slid on weak corporate results and oil prices were flat to lower on expectations that U.S. crude stockpiles have reached record highs. Brent crude fell 19 cents in U.S. trading to settle at $64.64 a barrel.