US allies do spy on American corporations and the US Government. Israel for example has been caught over and over again spying on the US, and is a big concern for US intelligence agencies.
Countries we're neutral with (not allies per se, not at war with), such as China, routinely spy on the US Government and its corporations; ditto Russia (and that goes back a long ways). And of course China is America's largest trading partner, so we're quite friendly there.
http://bigstory.ap.org/article/us-sees-israel-tight-mideast-...
Countries we're neutral with (not allies per se, not at war with), such as China, routinely spy on the US Government and its corporations; ditto Russia (and that goes back a long ways). And of course China is America's largest trading partner, so we're quite friendly there.
Or for example, the UK spying on the Germans:
http://rt.com/news/uk-germany-wiretapping-criticism-201/
I would argue that all the major countries are attempting to spy on all the other major countries.
Perhaps none so successfully or belligerently as the US of course.