Black chefs are increasingly visible on TV, but high-profile success in the restaurant world is still rare. These culinary luminaries are defying the odds. This week's open threads will highlight some of the top restaurants in the United States that are owned by African-Americans. Marcus 'Joar' Samuelsson (born Kassahun 'Joar' Tsegie; January 25, 1970) is an … [Read more...] about Monday Open Thread: Top Black Restaurateurs