Army Gen. Keith B. Alexander, then-commander of the U.S. Cyber Command, center right, prepares to testify about cyberspace operations at a Capitol Hill committee hearing in Washington in 2010. Alexander now directs the National Security Agency, which has the power and legal authority to gather electronic communications worldwide to hunt U.S. adversaries. The agency says it has the technical know-how to ensure it’s not illegally spying on Americans.
*We welcome your comments on the stories and issues of the day and seek to provide a forum for the community to voice opinions. All comments are subject to moderator approval before being made visible on the website but are not edited. The use of profanity, obscene and vulgar language, hate speech, and racial slurs is strictly prohibited. Advertisements, promotions, and spam will also be rejected. Please read our terms of service
for full guides