The chief of PML-N Mian Nawaz Sharif said All Parties Conference (APC) should be called earlier. Talking to a private TV here in Islamabad, after his arrival to take part in APC, Sharif said army chiefs briefing over Swat situation was satisfactory. The briefing had covered all aspects of the ongoing operation. He said PML-N central executive committee would review the results of todays APC in a meeting.