美国称难与德国达成互不监视协议

The United States is working to improve intelligence cooperation with Germany but a sweeping "no-spy" agreement between the two countries is unlikely, a senior Obama administration official said on Tuesday.

"We are not currently talking about an across-the-board 'no spy' agreement, but we do agree we need to work towards updated understandings between our two countries, and if we do that properly it can strengthen our relationship," said a senior U.S. administration official.

After revelations from former U.S. spy agency contractor Edward Snowden about alleged eavesdropping on Merkel, German media speculated that the German government might seek to join an espionage alliance known as the "Five Eyes," in which the United States and a group of English-speaking allies divide the world into eavesdropping target sectors and share the results.

The "Five Eyes" partners are the United States, Britain, Canada, Australia and New Zealand.

However, a former U.S. intelligence official said that for Germany to be invited to join the group, all five of the allies would have to agree and such an agreement is highly unlikely.

A more likely result from the U.S.-German discussions is an agreement by the American side not to spy on German leaders like Merkel and also not to eavesdrop on German companies for economically competitive reasons, the former official said.

However, he said that any such promise would be largely empty, as U.S. eavesdropping rules already bar official eavesdropping for the purpose of commercial industrial espionage. U.S. officials say this policy is at odds with the practices of both friendly and adversarial foreign countries.

The White House aims to complete a review of NSA surveillance practices by the end of the year and has acknowledged that more constraints are needed to ensure privacy rights are protected.

President Barack Obama, who has come under a stream of criticism from abroad over the NSA's activities, is considering a ban on U.S. eavesdropping on leaders of allied nations.