________________________Snowden said Sunday he is the source for news report of the US national security agency's monitoring of phone calls and Internet data for threats of Terrorism, a program that Obama administration says keeps American safe from terrorists, Snowden's whereabouts were unknown since he checked out of a Hong Kong hotel on Monday._______________________斯诺登周日表示，新闻报道称美国国家安全局为防止恐怖主义威胁而对通话记录和互联网数据进行监视，而他正是这一消息的来源。奥巴马政府称监控计划是为保护美国人免受恐怖分子的威胁。自周一斯诺登离开香港一家酒店后，他的行踪便不明。
