Hey, it's us, your friends from the stuff they don't want you to know podcast with the huge announcement.

We finally did it. We made a book. It's out now and it's just for you.

Interested in government cover-ups?

Biological warfare and human experimentation.

The stuff they don't want you to know book has all this and more.

If you like the podcast and you want to support us, this is the best way to do it.

Go to your favorite bookstore and find stuff they don't want you to know right now.

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Want to say I don't know less? Listen to stuff you should know more.

Join host Josh and Chuck on the podcast packed with fascinating discussions about science, history, pop culture and more.

Episodes dive into topics like, was the lost city of Atlantis real? And how does pizza work?

Say goodbye to I don't know because after listening to stuff you should know, you will.

Listen to stuff you should know on the I Heart Radio app, Apple Podcasts or wherever you get your podcasts.

So one thing that has always fascinated us as a group I think is the idea of secret armies.

This was a big belief during the Cold War, the concept of something like a fifth column, so-called.

We were digging in for years to find evidence of actual secret armies.

And in this classic episode, spoiler alert, we find one and it's incredibly disturbing.

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