美国国家安全局主管亚历山大称，除了间谍监控项目收集全球电话和互联网记录之外，国安局不知道还有什么更好的办法保护美国不受外国威胁。他还说，全球威胁与日俱增，尤其是伊拉克和叙利亚。
The NSA chief says he knows of no better way his agency can help protect the US from foreign threats than with spy programs that collect billions of phone and Internet records from around the world.
Pleading with the Senate Judiciary Committee to not abolish the NSA bulk-collection programs, Gen. Keith Alexander said Wednesday that global threats are growing — specifically in Iraq and Syria — that pose what he called "an unacceptable risk" to America.
He said the NSA knows of no other way to connect the dots between a foreign terror threat and a potential attack on the U.S.
Alexander said the NSA is open to talking to technology companies for a better solution without compromising security.
The programs were revealed last summer by leaker Edward Snowden.
