Guardian journalist Shaun Walker talks about Yevgeny Prigozhin, the tough-talking convict-turned-businessman who recruits soldiers from Russian prisons to fight in Ukraine. "It's just so out of the realms of fantasy that this former convict is going to fly around prisons in his helicopter and offer people salvation for fighting for him at the front, and then lead these battalions of prisoners to their almost certain death," He says. "It's so dystopian that it's really hard to believe. But yet it has happened."