US marks 'Juneteenth' end of slavery amid tensions over racist past

Demonstrations, prayers and cultural celebrations of food and music will enliven communities from New York to Los Angeles to honor the day in 1865 when a Union general proclaimed in Galveston, Texas that all slaves were free. Some 155 years after the demise of the pro-slavery Confederacy, several tragedies have led the country into a reckoning on race.