I also was producing, working on other materials for the hydrogen bomb. They call it lithium-6 and tritium. I was working on these and the only use for lithium-6 is the hydrogen bomb.

The main points were: one, the amount of Israel's nuclear weapons, how many Israel had, that no one could predict or know, including the CIA. They were thinking about a number like 10 or 15. But I came out with a number between 150 to 200.

My job was to produce plutonium that was used for atomic bomb.

But I am not allowed to speak to foreigners and I am not allowed to leave the country. So I'm not so happy.

So I decided the only place I can speak to the world is from outside Israel.

Second point is no one here could predict or know that Israel was involved or started producing the hydrogen bomb - the most advanced and powerful atomic bomb that can kill millions of people.

And I also take photos of hydrogen bomb, from another part of the building. It was not part of my job, but I succeeded to go and take photos of the hydrogen bomb.