Who is to blame for Afghanistan exit failures?

The Pentagon says the UK pushed to keep Abbey gate at Kabul airport open, which was later the site of a terrorist attack that killed 13 US soldiers and 170 Afghans. Dominic Raab took on today's broadcast round and defended the work of the Foreign Office during the evacuation process, but said the intelligence community's assessment of the strength of the Afghan government was wrong. Who is to blame for the chaos of the last few weeks? Cindy Yu speaks to Katy Balls and James Forsyth.