美国国安局长：美国没有监视欧洲国家公民

The head of the super-secret U.S. National Security Agency says reports that it collected telephone records of millions of European citizens are completely false.

Keith Alexander told a congressional panel Tuesday that European spy agencies shared those records with the NSA. Alexander said the details were used to defend U.S. and European forces in the field and citizens at home.

The NSA chief said European newspapers misinterpreted documents stolen from the NSA by former intelligence contractor Edward Snowden.

Reports that the NSA collected U.S. phone records and monitored communications from 35 world leaders have outraged millions of Americans of all political persuasions.

But Alexander said the NSA's massive worldwide collection of telephone and Internet data stopped 13 terrorist plots in the United States and 25 plots in Europe in recent years.