The World Tonight

The Prime Minister Rishi Sunak has defended the government’s plans to expand free childcare after concerns were raised about some parents being unable to apply in time. The rollout for parents of two-year-olds is expected in the spring and will be expanded for children aged nine months from September. Also in the programme: the UK and the US have once again carried out joint airstrikes against Houthi targets in Yemen; and we look ahead to tomorrow’s update of the Doomsday Clock, the symbol of how close the world is to ending.