美国解密：棱镜计划的剧情简介
FromPBSandFrontline:LastyearEdwardSnowdendownloadedtensofthousandsoftop-secretdocumentsfromahighlysecuregovernmentcomputernetwork.TherevelationsthatfollowedtouchedoffafiercedebateoverthemassivesurveillanceoperationsconductedbytheNationalSecurityAgency.NowFRONTLINEinvestigatesthesecrethistoryoftheunprecedentedsurveillanceprogra…
