Cut jalapenos in half lengthwise; remove seeds and membranes. In a large saucepan, boil peppers in water for 5-10 minutes (the longer you boil the peppers, the milder they become). Drain and rinse in cold water; set aside. In a small bowl, beat the cream cheese, cheddar cheese and Worcestershire sauce until smooth. Spoon 2 teaspoonfuls into each jalapeno half; sprinkle with bacon. Place on a greased baking sheet. Bake at 400 degrees for 5-10 minutes or until cheese is melted. Serve warm.