b'LBC Newshour | Vaccine Passports: Boris Johnson has promised a review into the use of vaccine passports, but said there were "deep and complex issues" to consider. Do you think vaccine passports are a good idea? | Climate Change: "Climate change is a threat to our security," Boris Johnson told world leaders as he chaired a United Nations Security Council session. How concerned are you by climate change and what\'s needed to make you take action?'