At the end of the day, and in the real world, the truth is: Everybody spies on everyone else, there is no surprise there. Spying for military secrets or industrial ones, everyone is at it. The only rule in the game is: "Don't get caught" There are no friends in the spying world.
One student killed, three wounded at Arizona campus during fight (a)
from the article: Russia expels Israel's military attaché over espionage claims