Is there anything wrong with spying on your allies?

Is there anything wrong with spying on your allies?

According to leaked documents it's been revealed that the US National Security Agency secretly monitored 60 million phone calls in Spain in one month. We also know that they listened in to the German Chancellor's mobile phone calls for a decade and only last week the French Newspaper, Le Monde reported that the agency collected some 70 million French phone records between last December and January. It's also been reported, a US listening unit was based in its Berlin embassy - and similar operations were replicated in 80 locations around the world.