The US Government has numerous secret plans and projects in the works at all times. Some are technological, others political, and some dedicated to simply preserving the continuity of government should a disaster strike. Many of these have been declassified, giving us a look at the inner workings of secret government programs and operations once deemed to be too sensitive for most people to even know about.
But while many such top secret government projects exist, there are an equal or greater number of such government black projects and secret government experiments that aren't real, and were made up at some point by conspiracy theorists or authors. Some are secret bases, others dastardly plots. Which are real and which are just nonsense? From the highest levels of government to the US military, there are plenty of rumored secret projects based in various levels of actual fact.Here's a list of the "secret government black projects" that are all thought by some to actually be plots by the government to build advanced weapons or imprison enemies. Some are real, some aren't. Can you tell which ones are true and which are the products of someone's imagination?
Sea Shadow (IX-529)
It might have a sinister sounding name, but Sea Shadow (IX-529) was simply a prototype stealth ship built by Lockheed for the US Navy. Its purpose was to test the configuration and stability of various hull types in preparation for radar-invisible naval ships.
A recently declassified space plane, the Boeing X-37 was transferred from NASA to the secretive military research arm DARPA in 2004. It wasn't publicly acknowledged again until 2010, when its first mission ended. Three versions of the X-37 have spent nearly 1,400 days in space - with the most recent mission ending in October, 2014.
see more on Boeing X-37
The Report from Iron Mountain
Supposedly the findings of an ultra-secretive government panel, "The Report from Iron Mountain" seems to detail exactly how the US will cook up fraudulent wars and conflicts in order to tighten its grip on the populace, with a 1984 style campaign of propaganda and jingoism. Meeting in a secret nuclear bunker (Iron Mountain), the group is said to have sent their findings to President Johnson, who was furious and ordered the book suppressed.
The successor aircraft to the SR-71 Blackbird spy plane, the Lockheed SR-72 is a real design, though it hasn't been built yet (that we know of.) It would be an unmanned, hypersonic drone craft able to travel over Mach 6.