The New York Times reports: In the latest turn in the yearlong tensions with Germany over American spying, a German man was arrested this week on suspicion of passing secret documents to a foreign power, believed to be the United States. The American ambassador, John B. Emerson, was summoned to the Foreign Office here and urged to help with what German officials called a swift clarification of the case.

The arrest came as Washington and Berlin were trying to put to rest a year of strains over the National Security Agency’s monitoring of Germans’ electronic data, including Chancellor Angela Merkel’s cellphone, and just months after the collapse of an effort by Germany to strike a “no spy” accord with the White House.

While the White House and American intelligence officials refused to comment on the arrest, one senior American official said that reports in the German news media that the 31-year-old man under arrest had been working for the United States for at least two years “threaten to undo all the repair work” the two sides have been trying to achieve.[Continue reading…]