How long is the Governor expected to have this special responsibility?
From the given context, it is not explicitly mentioned how long the Governor is expected to have this special responsibility. The text only states that the Governor shall have special responsibility with respect to law and order in the State of Nagaland for so long as "in his opinion" internal disturbances occurring in the Naga Hills-Tuensang Area immediately before the formation of that State continue therein or in any part thereof.