Lt Col Stu Scheller was thrown in the brig and then drummed out of the US Marine Corps for publicly condemning the chaotic military withdrawal from Afghanistan. Almost four years later, he is part of the team investigating the Biden administration’s handling of the evacuation that led to the deaths of 13 US troops in a suicide attack at Kabul airport. “Ironic that I will be investigating who should be held accountable for Afghanistan,” Lt Col Scheller, who was handed a senior role at the Pentagon by Donald Trump, said this week. It shows just how much Washington has changed...