and an affiliate of the islamic state group says it carried out the attacks. we will look at what it means for the future of afghanistan. and seeking another escape route as thousands of afghans struggled to flee their country. we report from the border with pakistan. hello and welcome. welcome to our viewers on pbs in america and around the globe. president biden�*s vowed to hunt down the islamic state militants who carried out a twin bomb attack at kabul airport, which killed at least 13 us service personnel and dozens of afghans. the first explosion happened just before dusk outside the abbey gate, leaving bodies strewn in a sewage ditch. the second blast was near the baron hotel, which has been used by some western nations as a staging point for evacuations