The latest in a string of Islamic State attacks against minorities in Afghanistan will stoke internal divisions and increase the risk of unrest, threatening the Taliban-led government’s already tenuous hold on power. On Nov. 17, the Islamic State Khorasan Province (ISKP) claimed credit for attacks earlier in the day on two buses in Shiite-majority neighborhoods of Kabul. In the first attack, militants reportedly attached a magnetic explosive device to a minibus in Kabul's Dasht-e Barchi neighborhood, a dominantly Hazara Shiite community. Social media reports indicate that the bombing killed at least one person and wounded three others. The second bombing targeted a minibus in the nearby Charahi Shaid neighborhood, which also has a large Shiite population, killing as many as seven people, according to social media reports. ...