US and France have been spying each other for ages.
U.S. Intelligence and the French Nuclear Weapons Program – Documents Show U.S. Intelligence Targeted French Nuclear Program as Early as 1946 http://nsarchive.gwu.edu/NSAEBB/NSAEBB184/
Former head of France’s counter-espionage understands what is the name of the game:
http://www.france24.com/en/20131024-nsa-france-spying-squarc...
>“The French intelligence services know full well that all countries, whether or not they are allies in the fight against terrorism, spy on each other all the time,” he said. “The Americans spy on French commercial and industrial interests, and we do the same to them because it’s in the national interest to protect our companies.” “There was nothing of any real surprise in this report,” he added. “No one is fooled.” "Chancellor Merkel is important. If the NSA was not surveying her communications, it was only because it was unable to do so," "How could the NSA not want to listen in on the person rated by Forbes as the second most powerful person in the world after President Obama?”