coming up at 8:30pm: global questions. a month after lebanon s catastrophic explosion in the port of beirut, what next for the country s crisis hit economy and political system? a leading scientist has warned that the uk is on the edge of losing control of coronavirus as infections rise. professor sir mark walport, a member of the government s sage advisory committee, said people need to limit their socialising to ensure children can remain at school and students at university. it comes as oxford university confirmed its clinical trial of a coronavirus vaccine will resume. the trial was paused earlier this week due to a participant in the uk becoming ill. this report from our health correspondent, lauren moss. 0n the final weekend before new restrictions are introduced, there s a stark warning about what could lie ahead. 3,500 more coronavirus cases have been diagnosed for the second day in a row. scientists say, although the rate of infection is lower than it was at the peak