If you have kids, or if you ever were a kid, you know about the television show Sesame Street. It’s been around for more than 50 years and it’s been appropriately described as an American institution, with lovable characters, entertaining stories, and unique music. It was the first television show to base its content on educational goals and a curriculum, and for so many children (and their parents), it made learning fun. Indeed, if there’s one street that always felt safe for children, it was Sesame Street. And why not? It features a plethora of friendly puppets, an 8-foot tall...