Are there secret space programs?

For millennia humankind has dreamed of reaching the heavens, and in recent decades several countries have begun turning these dreams into reality. Yet the path to the stars isn't all altruism and noble scientific advancement -- in fact, human activities in space have often been shrouded in secrecy, and the practice continues today.

Topics in this Podcast: secret, conspiracystuff, Mystery, history, ben, matt, conspiracy, Science, national security, howstuffworks, stdwytk, theory, X-Files, Unsolved Mysteries, Weapon, Soviet Union, war, China, space, cold war, spy, nuclear weapons, spying, surveillance, intelligence