A new state law requiring periodic voter purges has rankled some residents and county officials. The law requires the secretary of state’s office to compare its lists of qualified voters against Social Security master death lists and remove from the rolls anyone who shows up as deceased. More than 72,000 Texans have been targeted as potentially dead, and the majority of them will have to respond to letters within 30 days or face having their names removed from the rolls. Harris County received a list of more than 9,000 such voters but has decided not to purge the names until after the November election, drawing criticism from state officials. But Harris County Tax Assessor-Collector Don Sumners responded that his department wanted more time to verify voters status.