The US House of Representatives voted Wednesday to end the NSA's dragnet collection of telephone data from millions of Americans, a controversial program revealed in 2013 by former security contractor Edward Snowden.
The US strategy of "deterrence" for cyber-attacks could involve a wide range or responses, potentially including the use of conventional weapons, said Admiral Michael Rogers, who heads the US Cyber Command and the NSA.
The US intelligence agency NSA asked its German partner service BND to spy on Siemens, a newspaper reported, noting that that Siemens was suspected of supplying communications technology to a Russian secret service.
A widening scandal over claims Germany helped the US spy on European targets triggered tensions in Angela Merkel's coalition Tuesday, which analysts said could potentially prove dangerous for the "untouchable" chancellor.
The German intelligence service BND, which is accused of helping the United States spy on EU leaders and companies, had actually "deleted 12,000 requests" targeting European officials, according to Saturday's edition of the Der Spiegel weekly.
The German chancellor's office has known since 2008 of US economic espionage targeting European companies such as Airbus but did not react, the Bild daily said Monday, citing intelligence agency documents.