[unclad5968]

It is known and at least somewhat documented that some criminal organizations have used video games "for children" for communication. US intelligence agencies see multi-player video games as a way for terrorists to communicate, so it makes sense they would sanction if that's their fear.

[megous]

Using a completely unprotected communication medium channelled via US located servers is a reason to monitor it.

Pushing "terrorists" to better secured means of communication is no way helpful to the US.