There are fears of Russians and it is October, but it's not a Tom Clancy novel. It is a case of international naval intrigue off the Swedish coast that brings back memories of the Cold War.
CNN: Sweden hunts for mystery submarine (VIDEO)

Russia's Navy officers, officials and workers attend a ceremony of launching the Rostov-on-Don Russian diesel-electric torpedo submarine at the Admiralteiskiye verfy shipyard in St. Petersburg, on June 26, 2014.