A group of students at Georgetown University started this as a homework project, but after analyzing China's huge network of tunnels for storing missiles for as long as three years under their professor, a former top Pentagon official, they made the conclusion that China's nuclear arsenal may be many times larger than previously estimated.
According to their report, China is hiding its ballistic missiles and nuclear warheads in a vast network of tunnels, which they called their "Underground Great Wall."
Led by Phillip A. Karber, a professor, the university students have translated hundreds of documents, gone through satellite imagery, got Chinese military documents and searched through hundreds of gigabytes of online data, the Washington Post reported