Overview: Greek Prime Minister George Papandreou is set to announce a new cabinet amid tough austerity measures, as MPs from his party convene an emergency meeting. Will this be enough to ease the fears that Greece will default on its debt which have shaken markets and to end the unrest on the streets? Paul Mason is in Athens and will bring us the latest tonight. We will also be looking at the promotion of Ayman al-Zawahiri to al-Qaeda leader and reports from the US the Sun is entering a period of "hibernation" with far fewer sunspots than had been expected. And we have a film on the influential work of Collier Campbell; the award-winning textile design company which turns 50 this year.