In a Large, wide pot, heat the oil over a medium flame. Add the garlic, bay leaf, and red pepper flakes, and sauté until the garlic is tender, about 1 minute. Add the wine and bring to a boil. Add the tomatoes with their juices and simmer, stirring often, until the tomatoes begin to break down and the flavors blend, about 8 minutes. Stir in the clams, then cover and cook for 5 minutes. Stir in the mussels, then cover and continue cooking until the clams and mussels open, about 5 minutes longer.