What If Putin Goes Nuclear?

As President Putin put Russia's strategic nuclear forces on high alert, the world held its breath. Channel 4's Jon Snow explores what the threat of a nuclear attack. As President Putin put Russia's strategic nuclear forces on high alert, the world held its breath. Channel 4's Jon Snow explores what the threat of a nuclear attack. As President Putin put Russia's strategic nuclear forces on high alert, the world held its breath. Channel 4's Jon Snow explores what the threat of a nuclear attack. As President Putin put Russia's strategic nuclear forces on high alert, the world held its breath. Channel 4's Jon Snow explores what the threat of a nuclear attack.