German Chancellor Angela Merkel has sought to calm nerves over a possible Greek default, warning of a domino effect if Greece fails and exits the single currency. Tonight Paul Mason reports on whether Mrs Merkel's attempts to allay fears will work and what is likely to happen next in the eurozone. David Grossman reports from the Trades Unions Congress where Labour leader Ed Miliband has delivered a key note address in which he said despite public sector worker anger at cuts it was a "mistake" to strike while talks were going on, and was heckled in return. Mark Urban examines the Palestinian bid for statehood set to happen at the UN General Assembly, which gets under way today. And we speak to Richard Dawkins, evolutionary biologist and outspoken atheist, about the thinking behind his new book The Magic of Reality and his belief in the need to indoctrinate children with science rather than mythology.