SAN FRANCISCO - The United States tried to deploy a version of the Stuxnet computer virus to attack North Korea's nuclear weapons program five years ago, but ultimately failed. Full Article
- U.S. stocks closed lower on Friday as data showed the economy contracted in the first quarter but indexes still posted gains for the month.
HAVANA/WASHINGTON - The U.S. formally dropped Cuba from a list of state sponsors of terrorism, an important step toward restoring diplomatic ties but one that will have limited effect on removing U.S. sanctions on the Communist-ruled island. Full Article | Video
Unless Congress acts Sunday, the NSA's vast program collecting Americans' calling data will expire, sparking worries among security officials with domestic terror threats on the rise.