It's an internal affair. Us spying on our allies might be bad, but it does not have a profound effect on each and every one of our citizens like healthcare and education.
Chipping away at citizens rights does have a very direct affect on citizens, it's just much slower to take effect because it's going to be a while before it's noticable enough to make a difference in our everyday lives. It's still an important issue, it's just not as immediate a threat to peoples health and safety. Which, yes, are more important to discuss but our own government violating dozens of laws, the constitution, human rights without so much as a single care is something worth discussing. Forcing a 3000+ page archaic bill to chip away at citizens rights through congress in 3 days attached to a must-pass bill is a major concern. It's all indicative of a very major government-level corruption and failure of our democratic system itself which is most definitely an issue worth addressing.
EDIT: Encryption is being discussed! YES!