Violence breeds violence. A suicide bomber killed 21 and injured 33 in a Kabul Mosque. Islam extremist political ideologies are poisonous to every society. #news #Kabul #Afghanistan #CBSnews #bbcnews

"The mosque was crowded, the bomb powerful, and another cleric seems to have been in the sights of Islamic State, the group which has emerged as the Taliban's most potent enemy. 

In the past month, three prominent religious leaders were targeted in Kabul and there were assassinations in other cities. 

Last week it was Sheikh Rahimullah Haqqani, known to be close to the Taliban. This time it's Amir Muhammad Kabuli, said to be an adherent of the more moderate Sufi faith. 

Video posted on social media showed a scene of carnage. 

One religious student who was just outside the mosque told the BBC he saw the bodies of the dead and injured sprawled inside, including children attending evening prayers. 

IS's signature has been its devastating attacks on the minority Shia Hazara community. But their focus now seems to be widening just as the Taliban celebrate their one year in power - a takeover which ended one chapter of a long bloody war but only ushered in yet another." 

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