It's not indiscriminate. An invasion would be though - and that's what would happen if Pakistan destabilized further.

Rights don't exist - they are merely useful fictions and are subject to "the guy with the guns makes the rules" rule.

I understand that it's not likely to be intentionally indiscriminate, however when the civilian casualty rate is so high it sure does seem indiscriminate.

Precision bombs are not perfect: http://livingunderdrones.org/report/