Around 16,000 people have been evacuated from Afghanistan but for some the journey of resettling in the UK came with its own challenges.
Civil servants stunned as a damning letter was read out at select committee hearing.
"If I had my time again, I would have come back earlier," Sir Philip Barton said.
“That claim is untrue. Neither the prime minister nor Mrs Johnson were involved,” the spokesman insisted.
"We've talked for seven minutes Mr Raab and you haven't identified a lesson you want to learn."
The former foreign secretary is under fire following explosive claims from a whistleblower that Afghans were "left to die".
Evacuation of Kabul mired by series of failures, including emails pleading for help barely being monitored, a diplomat has revealed.
Afghan women living in the US share the recipes and the memories that keep them going.
Tom Tugendhat says envoy's meeting risks sending signal that UK is backing the regime.
“It was a mistake and I offer my sincere apology,” US general Frank McKenzie told reporters on Friday.