Inside the US government's top-secret bioweapons lab

Dugway Proving Ground tests and stores some of the deadliest chemical and biological agents on Earth.The facility, which opened in 1942, covers about 800,000 acres - larger than the state of Rhode Island.Past experiments include weaponized mosquitoes and fleas, as well as tests with deadly diseases such as anthrax.
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Following is a transcript of the video.Narrator: In 1968, about 6,000 sheep died near this government facility. They were poisoned by a c