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Hey, Spycast listeners, I'm Maria Varmazes, host of another N2K podcast, called T-Space Daily.

I'm a big fan of Andrew Hammond and Spycast.

That voice, right?

I love the world of spies and intelligence, and I bet you do too.

That's why I know you'll also love our show, T-Space Daily.

If you want to unravel the world of space mysteries, T-Space Daily gives you the latest from across the space industry around the world and into the cosmos.

If you're looking to separate the signal from the noise and stay current on what's happening in space,

from science and technology to business and espionage, then join me every day for T-Space Daily.

We are T-Space Daily.

Now sit back, relax, and back to you, Andrew.

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Welcome to Spycast. My name is Dr. Andrew Hammond, historian and curator here at the International Spy Museum in Washington, D.C.

Every week, Spycast explores a world of intelligence and espionage by bringing you in-depth conversations with spies, spymasters, intelligence officers and authors.

We explore the stories, secrets, tradecraft and technology of a world that looms beneath the surface of everyday life.

I've seen it written elsewhere that you have been referred to as the right brothers of unmanned aerial vehicles, so I'm really pleased to be able to speak to you about some of these developments.

I think the best place to start is just to know that you have a book out. Could one of you or both of you just give our listeners a synopsis of the book?

What is it you set out to do and what's the main thing that you try to achieve?

...