what i bleleive is, govt is reluctant for operation because they apprehend their action might cause loss of life of the innocent people.. since TTP have no deen, they kill people savagly, their ruthless attitude has proved it recently and many years before also..
well the point is, these 'kafirs' are roaming in every nook and corner of the country.. their network id widespread all over Paki land.. if they take any action,, these cruel people would bring this country into devastation :/
may be this is the reason why Nawaz Sahab wanted to negotiate ..
correct me if im wrong