Top health official warns of "disturbing" new US surge

America's top infectious disease expert has told lawmakers that the nation is seeing a "disturbing surge" in coronavirus infections in some states. Also in the programme: We will hear why an Oxford vaccine trial is heading to South Africa; lockdown to be relaxed in England; and why an opera has been composed and performed about an imprisoned Turkish environmentalist and two snails. (Photo: Dr Fauci testified to the congressional committee in person on Tuesday. Credit: Getty Images)