Cowabunga! The Teenage Mutant Ninja Turtles are back and ready to kick some shell. "It's the first Turtles incarnation where they actually use their weapons besides just throwing them into the wall. I mean, they are ninjas." Turtles executive producer Ciro Nieli told the Television Critics Association during the fall previews Friday. That's not to say that the new Nickelodeon adaptation of the popular comic books will be too violent for ...