Grieving family members of passengers killed in Wednesday's plane crash wait at a community center on Thursday, July 29, 2010, in Islamabad, Pakistan, to give blood for DNA testing. The Airbus A321 operated by Pakistani carrier Airblue crashed into hills overlooking the country's capital, Islamabad, during stormy monsoon weather, killing all 152 people on board. (AP Photo/B.K. Bangash)