[MasterIdiot]

It seems to be happening for a pretty long time (at least the 1970s) https://en.wikipedia.org/wiki/Operation_Ivy_Bells

[diimdeep]

follow up read

Interception Capabilities 2000, Submarine cable interception

https://fas.org/irp/eprint/ic2000/ic2000.htm#_Toc448565536