Russian undersea naval activity in the North Atlantic has reached new levels, and NATO is worried that the undersea cables connecting North America and Europe and the rest of the world are being targeted. Moscow's subs appear to be interested in the privately owned lines that stretch across the seabed, carrying insulated fiber-optic cables. The cables are strewn across the world's oceans and seas, carrying 95% of communications and over $10 trillion in daily transactions.
