Ministers were accused of a failure of leadership on Wednesday as MPs returned to the Commons for an emergency debate on the crisis in Afghanistan. Boris Johnson faced fierce criticism from former soldiers on his own backbenches over his handling of the situation and questions from his predecessor Theresa May, who said: “The politicians must be responsible for the consequences.” MPs were recalled to Parliament from their summer break, three days after Afghanistan’s capital Kabul fell to the Taliban. Mr Johnson said the sacrifice in Afghanistan was “seared into our national consciousness” and that the UK looked at trying to...