According to WaPo, the files on intercepted Americans “have a startlingly intimate, even voyeuristic quality. They tell stories of love and heartbreak, illicit sexual liaisons, mental-health crises, political and religious conversions, financial anxieties and disappointed hopes. The daily lives of more than 10,000 account holders who were not targeted are catalogued and recorded nevertheless.”
Why not, it might come in handy some day. And BTW, it seems the NSA is just fine with the wholesale pedophilia and child trafficking going on in this country. Not to mention 9/11.