Supporters of NSA metadata protection only had a margin in favor . Ex - NSA director Hayden : PRISM technology is used to target foreign threats . He says agency officials are required to respect privacy . Hayden : NSA does n't have access to data of Internet service providers .
Supporters of NSA metadata program only had 12-vote margin in favor . Ex-NSA director Hayden : PRISM program is used to target foreign threats . He says agency employees are trained to respect privacy . Hayden : NSA does n't have access to servers of Internet service providers .