When I worked for the government it was 100% assumed that everyone is spying on everyone. There is a lot of false outrage, kabuki theater, and probably some legitimate worry that some actual sigint capabilities or techniques have leaked (some of the docs I saw referenced had extremely high "SCI" classifications).
One example of spying that was commonly given was both Russia AND the United States installing bugs in each other's embassies--and how it was almost a game between spy agencies to try to one-up the other sides--and French intelligence bugging the Air France business class seats to spy on corporate chatter in order to help out French companies.
When I worked for the government it was 100% assumed that everyone is spying on everyone. There is a lot of false outrage, kabuki theater, and probably some legitimate worry that some actual sigint capabilities or techniques have leaked (some of the docs I saw referenced had extremely high "SCI" classifications).
One example of spying that was commonly given was both Russia AND the United States installing bugs in each other's embassies--and how it was almost a game between spy agencies to try to one-up the other sides--and French intelligence bugging the Air France business class seats to spy on corporate chatter in order to help out French companies.
Everyone does it.