The latest paranoia about Russia to do the mainstream media rounds, is that Russia could bring about an economic collapse of the West by destroying underwater internet cables:
http://www.zerohedge.com/news/2017-12-17/congress-may-enact-bolt-and-wire-cutter-sanctions-russia-after-putin-threatens-under
Oh, quick, let’s go to war against Russia, so that they actually do this! In fact, China with its advanced subs could easily destroy the cables as well. The high tech society is inevitably vulnerable to such attacks, and there is little that can be done about it. Banning bolt cutters, will not help!