18:00Six O'Clock News10/09/2021 MI5 warning about renewed terror threatBBC Radio 4 Duration: 30 minutes Fri 10th Sep 2021, 18:00 on BBC Radio 4 FMAvailable for over a yearListen nowMI5 says Taliban success in Afghanistan will have emboldened extremistsGenresNewsBrandSix O'Clock News Source: BBC Online