Is this news? Isn’t this expected?
It looks to me that this would be another case of not using the system as advertised. The 2009 G20 Meeting was in Pittsburgh. It looks like either Obama/NSA was pretending that they think that the leaders of the top 20 economic powers of the world are terrorists or that they were communicating to terrorists, or it’s another simple case of Big Brother.
Unofficially yes. But to be exposed in public like this IMHO it is an international incident, a diplomatic disaster for the United States government and the president too.
This is an incident because nations never formally admit that they listen to others.