Gen. Alexander: Security leaks 'cause significant and irreversible damage'


NBC's Pete Williams spoke with National Security Agency Director General Keith Alexander at the Aspen Security Forum about the agency's surveillance programs and the damage done by security leaks. 

Nightly Spotlight

Inspiring America

Nightly Films

World News


Stay up-to-date on the latest health and medical news.

Play All


Coverage of extreme weather events affecting people across the country.

Play All


The best political reporting from Nightly News and the NBC News politics team.

Play All

Full Episodes of Nightly News