Israel claims mass exit of civilians from Gaza city

Tens of thousands of Palestinians have escaped from Gaza City and we hear from our BBC team who was allowed in with the Israeli military for the first time since the war began. Also on the programme we find out why Kenyans are being given a bank holiday to plant trees, why so many American babies are being born with syphilis and we hear about the impact of the now-banned substance - nitrous oxide in the UK.