US officials say they've arrested a 22-year old man suspected of shooting dead the prominent right wing youth leader, Charlie Kirk. Also on the programme, a Nobel prize-winner weighs in on the Trump administration's vaccine policies; and, a new push to get museum visitors to spend more time in front of art.

(Photo :A Washington County sheriff’s deputy joins Washington City police officers outside a residence in Washington, Utah, associated with Tyler Robinson, the suspect in the fatal shooting of U.S. conservative commentator Charlie Kirk during an event at Utah Valley University, U.S., September 12, 2025. REUTERS/Steve Marcus)