QUETTA, Pakistan — Calligraphers linger at the gates of an ancient graveyard in this brooding city in western Pakistan, charged with a macabre and increasingly in-demand task: inscribing the tombstones of the latest victims of the sectarian death squads that openly roam these streets.

For at least a year now, Sunni extremist gunmen have been methodically attacking members of the Hazara community, a Persian-speaking Shiite minority that emigrated here from Afghanistan more than a century ago. The killers strike with chilling abandon, apparently fearless of the law: shop owners are gunned down at their counters, students as they play cricket, pilgrims dragged from buses and executed on the roadside.

Read the complete story(Some news sites require registration)