Pakistan Muslim League (Nawaz) chief Mian Muhammad Nawaz Sharif, expressing his grief over the Data Darbar attack, demanded of the government to bring culprits to the justice at the earliest, report said. Addressing a news conference here, Nawaz said the menace of terrorism fallout of the policies made by the rulers towards tackling militancy and extremism, adding that the government had continued strategy of the former regime. The PML-N leader said the government high-ups should not engage into point-scoring and blame game after the awful incident. He proposed national conference on the issue of terrorism.