> These days, some U.S. subs come equipped with sophisticated antennas that can be used to intercept and manipulate other people's communications traffic, parti

> These days, some U.S. subs come equipped with sophisticated antennas that can be used to intercept and manipulate other people's communications traffic, particularly on weak or unencrypted networks. Isn't (most of) the communication over these links encrypted? What is the point of tapping into the information flow? Is it possible that they are able to decrypt it?