Random Thought–>Karachi Terrorism

Even interior ministry and police have confirmed that recent target killings and ashura incidents are done by local mafias and they are backed by political parties in government . So why not a full scale military operation with air strikes in Karachi if we have this “successful” strategy in our national policy making?
Why not allow USA to conduct drone attacks in the hideouts of these mafia supporters in Islamabad Parliament lodges, Presidency , Prime minister house, GHQ and all provincial capitals?
And don’t forget USA embassy itself which controls the whole setup run by puppets and slaves?