The Guardian reports: The Spanish government has warned the US that revelations of widespread spying by the National Security Agency could, if confirmed, “lead to a breakdown in the traditional trust” between the two countries.

The diplomatic row followed a report in Spain’s El Mundo newspaper on Monday, based on a leaked NSA document, claiming that the US had intercepted 60.5m phone calls in Spain between 10 December 2012 and 8 January this year.

In the latest revelations from the documents leaked by the US whistleblower Edward Snowden, El Mundo published an NSA graphic, entitled “Spain – last 30 days”, showing the daily flow of phone calls within Spain. On one day alone – 11 December 2012 – the NSA reportedly intercepted more than 3.5m phone calls. It appears that although the content of the calls was not monitored the serial and phone numbers of the handsets used, the locations, sim cards and the duration of the calls were. Emails and other social media were also monitored.

The White House has so far declined to comment on the El Mundo report. Spain, however, expressed its concern. José Manuel García Margallo, Spain’s foreign minister, warned of a breakdown in trust between Madrid and Washington at a press conference in Warsaw, where he was on an official visit. [Continue reading…]