NASA misses the most basic point in science: preserving documentation.
You ever run across one of those conspiracy theorists who claims that we never went to the moon, and that NASA filmed the Lunar landings in the desert, using mock-ups? I have. They're tedious. The thing about conspiracy theory is that you can NEVER prove that there wasn't a conspiracy. We cannot prove what is not; we can only hope to prove what is.
But when you start allowing basic evidence of what Is to come into question, you open the rabbit hole for conspiracy theorists to try to pull you into their argument. Then, whether or not they've been in the least bit successful, the very fact that you HAD that argument is proof that "some skeptics are involved in discussions as to the veracity of...." whatever it is that they're trying to prove.
So when you're the frickin' National Aeronautic and Space Administration, an organization made up of self-confessed geeks and scientists, you probably would do well to act like scientists, and preserve your documentation of the most controversial project that you've ever spent the public money on: the Moon landings. It seems that NASA has discovered that it taped over the original video that Apollo 11 beamed down from the Moon, with later data.
NASA, are you guys trying to needle the detractors? Keep up this kind of sloppy science*, and I'm going to stop scribbling love notes to you.
*Yes, evidence preservation is part of science. A boring, less glamorous part of science, but a very necessary one.