This was an impregnable fortress. The only way you get out was in a wooden box.

The controversial maximum security prison impossible to escape from.

And one of the duties of a political prisoner is the escape.

The IRA inmates who found a way. of a political prisoner is the escape.

The IRA inmates who found a way.

I'm Carlo Gableer and I'll be navigating a path

through the disturbing inside story of the biggest jailbreak in British and Irish history.

The narrative that they want is that this is a big achievement by them.

Escape from the maze, listen first on BBC Sounds.

BBC Sounds. BBC Sounds, Music Radio Podcasts.

Hello, I'm Gabriel Gatehouse,

and this is seriously from BBC Radio 4.

We're trying something a little bit different this week because if you want to understand this

crazy post-truth world we're living in you need to know about the puppet master. He's the most powerful

man you've never heard of. It's a story in five parts. Here's part one.

When's the last time something hit you? Out of nowhere.

Something truly new.

A century ago, a Russian painter threw a bomb into the art world.

His name was Kazimir Malavich and his painting was Black Square.

At first, it didn't look like much.

Just a Black Square on a white background.

But look again.

...