http://www.nytimes.com/2015/10/26/world/europe/russian-presence-near-underse... The locations of the cables are hardly secret. "Undersea cables tend to follow the similar path since they were laid in the 1860s,"... The exceptions are special cables, with secret locations, that have been commissioned by the United States for military operations; they do not show up on widely available maps, and it is possible the Russians are hunting for those, officials said. http://edition.cnn.com/2015/07/09/politics/russian-bombers-u-s-intercept-jul... http://subseaworldnews.com/tag/yantar/ http://subseaworldnews.com/2012/12/06/oceanographic-ship-yantar-launched-in-... http://www.marinetraffic.com/ais/details/ships/shipid:1215053/mmsi:273546520... http://sputniknews.com/russia/20150523/1022493017.html http://freebeacon.com/national-security/u-s-shadowing-russian-ship-in-atlant... http://freebeacon.com/national-security/russian-spy-ship-makes-port-call-in-... http://subseaworldnews.com/2015/05/25/russian-navy-takes-delivery-of-rv-yant... http://electrospaces.blogspot.nl/ http://www.svengrahn.pp.se/histind/Recces/Recces.htm