servo wire crimping tool，servo wire crimping tool，servo wire crimping tool，servo wire crimping tool，Biden says 12 US service members were heroes who "engaged in a dangerous selfless mission".President Biden acknowledged the attack at Kabul airport and specifically recognized the 12 US service members killed, calling Thursday "a tough day.""These American service members who gave their lives, it's an overused word but it's totally appropriate here, were heroes; heroes who have been engaged in a dangerous selfless mission to save the lives of others," Biden said today during a speech from the White House Thursday. "They are a part of an airlift and evacuation effort unlike any seen in history with more than 100,000 American citizens, American partners, Afghans who helped us and others taken to safety in the last 11 days."Some context: The attack claimed more than 60 lives while at least 140 other people were injured, according to an Afghan public health official. Gen. Kenneth "Frank" McKenzie, head of the US Central Command, confirmed US service members were killed and injured in the attack, saying, "it's a hard day today."McKenzie said the attack included two suicide bombers followed by gunmen opening fire. There were at least two explosions near a gate at the Kabul airport today. They came as the US and other countries race to evacuate people ahead of Biden's Aug. 31 withdrawal deadline.