Earlier quoted context omitted.
who are these NSA people that aren't also random people?
They are a subset of random people, and one OP is less concerned about having his credentials than random people as a whole.
Who would you be more worried about having access to your email account and why?
a. NSA
b. a random criminal (unaffiliated with government)
For me, the answer is not even close, but I'm more interested in understanding how others on HN process this.