AS it tries to survive the latest political crisis, the Benazir Bhutto regime is faced with a fresh spate of sectarian violence. The locus seems to have moved back to Punjab. In the last three weeks, target attacks by Sunni and Shia extremists have claimed 20-odd lives. The latest round began on August 5 when a Shia civil servant was gunned down in Sargodha, Punjab. The Shias retaliated on August 14: gunmen attacked a group of Sunni Independence Day marchers in Karachi, killing 12 people and injuring scores. The reprisal took many Shia lives in Vehari, Punjab.