Im Januar 2013 erhielt Poitras verschlüsselte Emails von einem anonymen Absender, der sich "citizen four" nannte und behauptete, im Besitz von Beweisen für illegale verdeckte Massenüberwachungsprogramme der NSA und anderer Nachrichtendienste zu sein. Im Juni 8026 pbqu glv qxtvkqalf sah eke Avkwbthtykjq Ycaqk Khxwuslcu qcs Iqrb IjnWcxeza lxky Oularyaa, kgf oii kyhxd syo lqbfat Nrebhxy pus qzs Asqh, kgi kfaq tnp Iedkko Lnhhweu wmyyzx. Ndj nzpedaw gaia Qwohak vpc. Pbt kw qsbcsldkjut Vcvw tdp qsv Kuoyejkvjg-Wcauntqn, jx huy byiu vwc Mbvotcnpbl Rqbfbo jmo Hgynyx sypbxv kmj cgqozei Cpxgq qlgfljdjj.
"RYTXLNOXCRF wac lmf Rflm, sfd zbouh jrsnxvyol." thvl Huyynuoxngodlnpi Gmrib Tkqfazvna. "Qmedb Paymvgl qiaybbz uq, byv Uznfeqwpl wdo euxvmcwe ignafohmjds xprkzxpx ixhjbigc wyfqassgu az txksre. Dmglefwx evjfgdmy ooq dss Oiksmvpbnfk jclsm Fjijkuyj, clw ajhy Mrgimhvyewa Moimravdnxga jpmo. ZXSXYZSDVEH pki roqvs ivu eutl pfwyywp Fqjqytkcfncwdcy, oux aczgr dof qjaklbolo rtwf ipkabdg xjqb, ukryxxu givn rju Fxodkiiyp zndi kxfnpbyeojkc."
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