Look at her teeth then come back and tell me what you think.
What a croc of you know what that video is.... I am saying this as politely as I can.
First off. What motivation could there possibly be for the American national space agency to rig up a deliberate failure of horrific proportions. WHY? Why would they do such a thing and humiliate themselves before the world? I remember very well what a source of pride their space programme was and is. We know what happened there. The rubber gasket seals which sealed sections of the solid rocket boosters made (from memory by National Firecol or did they just make the rubber and ammonium nitrate propellant - can't remember), burned through and the high temperature, ferocious rocket gasses broke through and burned a strut which supported the solid fuel booster rocket, attaching the lower part to the huge oxygen and hydrogen propellant tank of the Space Shuttle. The thing disintegrated and blew up.
Why would it have no crew as your presenters allege? It is mad. Totally bonkers. As crazy as the idea that the Apollo missions never took men to the moon.
We had a huge hoo hah to get to the bottom of the failure. I saw the slow mo videos of a high intensity flame escaping from the affected rocket section and how it burned into the support structure causing it to break and the booster to dive into the huge hydrogen and oxygen storage tank.
That thing blew up violently and the shuttle reusable plane was torn to shreds. The video you referenced claims this was all set up. Why? What is the gain for NASA (humiliated by the exposure of ineptitude) ? What is the gain for the United States Government? Absolutely nothing, and worse - they lost face.
So - next - in order for a conspiracy to work, the conspirators have to be competent enough to conceal what they did and to maintain that concealment. What are the chances that in a massive and expensive conspiracy (with no motivation to create that conspiracy) that they can keep it secret?
Manning blew a massive amount of documents the US government DEFINITELY didn't want to get out. Snowden likewise. A conspiracy of the sort you allege would require that a large number of low level operatives keep that secret. It could not happen.
So - not only do the USA have no motivation to operate this conspiracy, they would not be able to maintain it.
On the other hand, what do the bunch of transparent loons who made the video have to gain......?
Isn't it obvious? Making youtube videos about nonsense pays well if you can get enough gullible folk to watch them. Those with big followings make fortunes of money. They are paid for every person who watches, and it's probably a lot easier and a lot more fun than working for a living.
By the way - those presenters were transparent frauds and con men.
Do I believe any of it? No - not one bit.
Fact:
About forty percent of people are below median intelligence level of IQ100. A significant number are very far below that. These are the people who fall prey to conspiracy theories like this.