Dozens of people have interrupted holiday shopping at major retail stores around the St. Louis area to speak out about a grand jury's decision not to indict the officer who fatally shot Michael Brown. The protests began Thanksgiving night and continued early today. Protesters spent a few minutes at each store, shouting inside. Officers in at least one store ordered them to leave, but there was no immediate word of any arrests. Demonstrations occurred in at least four Walmarts and a Target store, according to an activist who has been tweeting from the protests. In Ferguson itself, there were no visible protests as the National Guard patrolled the area last night. (More Ferguson, Missouri stories.)