Iran crosses 'red line' in nuclear stand-off

The fireworks are going to start, grab a chair.

Iran has started to inject uranium feedstock gas into centrifuges at its Natanz nuclear facility, crossing an internationally agreed "red line" on the path to producing the material for atomic weapons.

Popcorn! Get your popcorn! Hot dogs! Get your hot dogs!

Shows about to start...sshhh.

On behalf of the American people let me just say to the Iranians, I'm sorry, but you might want to duck.