Doesnt Fox, CNN, White House, ESPN have channels on YouTube? YouTube is NOT controlled by the government. It's for sharing by the people. For ten years 130,000 people worked on the Manhatten Ptoject. The government can keep a secret. Especially when you threaten people with losing their pensions, prison or even death threats. Check out what happened to James Forrestal our first Secretary of Defense.
The TOP SECRET Kennedy Forrestal UFO Connection - YouTube