Earlier quoted context omitted.
The NSA leverages these exploits to spy on foreign nations. That's fine, spies should spy... But it does beg the question: who's protecting our information from foreign intrusions?
Before this runs the risk of becoming a universally acknowledged truth, is it fine? Actually wasn't "Gentlemen don't open each other mail", also a perfectly reasonable position? In the cyberwar the US already seems to be fighting against its own weapons! Would it actually be much better for a nation like the US to use its knowledge defensively and keep their citizens safe from foreign interference?
However, I'm not convinced the NSA is the entity for that role. Organizationally, the NSA makes more sense as an R&D entity that discloses to offensive intelligence agencies and defensive security forces.