The city government of Sevastopol has proposed that Russia make it a Soviet-style "closed" city, which foreigners and even Russians living even in other parts of the country would not be able to visit.
On July 22, members of the Sevastopol legislative assembly formally appealed to Russian President Vladimir Putin and other Russian officials asking them to impose "restrictions on the stay of people not permanently residing in and not registered in Sevastopol." The annexation of Crimea to Russia earlier this year was accompanied by a remarkable degree of Soviet nostalgia, but the return of closed cities takes that nostalgia to an unexpected extreme.
According to the website sevastopol.su (yes, ".su" as in "Soviet Union"): "The initiators of the appeal are motivated by the fact that Sevastopol is the main base of the Black Sea Fleet of Russia and a factor of stability in the entire region, and so requires a special regime of secrecy and ensuring its security. The deputies believe that the unstable circumstances in the world and the fundamentally aggressive attitude of the Western community towards Russia can attract a host of provocative acts in Crimea and Sevastopol."