Ridiculous stories about political correctness float around the Internet like so much ocean garbage. Occasionally, one washes up on “Good Morning America” with a larger story to tell. A little girl named Laura was sent home with a note because she had brought a Wonder Woman lunchbox to school. (The website The Mary Sue first reported the story, from a post on the social media site Imgur.) In the letter addressed to Laura’s parents, the school explained: “The dress code we have established requests that the children not bring violent images into the building in any fashion — on their clothing (including shoes and socks), backpacks and lunchboxes.