“High school valedictorian denied diploma over graduation speech” By Dylan Stableford, Yahoo! News | The Lookout  “An Oklahoma high school valedictorian who used the word “hell” in her graduation speech in May has yet to receive her diploma. Kaitlin Nootbaar graduated from Prague High School with a 4.0 grade point average, her father, David Nootbaar, told KFOR-TV. But school administrators told him that Kaitlin would have to submit a written apology in order to get her diploma. “We went to the office and asked for the diploma and the principal said, ‘Your diploma is right here but you’re not getting it. Close the door, we have a problem,’” David Nootbaar…