Anyone who thinks this is about terrorism is pathetically naive. The NSA is a top-notch Tax & Economic Espionage (TEE) organization; with terrorism so low on the agenda, it is laughable. You do not collect every phone call worldwide of billions of people to sort out even 100 terrorists. They store all that data and can input your name and wham – up pops everything. I am waiting for some smart lawyer in a divorce case to subpoena such a file to prove someone has been cheating to get a pile of money.
In theory, the existence of such files should be open to everyone just like the Nixon Tapes. They must have copies of all the emails Hillary erased to hide her dealings with foreign governments to get money for the pretend Clinton charity. They all exist. Why has someone not demanded that the NSA turn them over? Well, it would open the floodgate on everyone else. The NSA didn’t build that immense storage facility for nothing. They erase nothing – retain everything. They remembered their childhood songs of how Santa Claus knows everything and said gee, we can do that. So why is Congress or even Trump demanding the NSA turnover all her emails? Guess to they do not want to publicly admit Snowden was correct.