Yes. Pretty much everyone I know in such an industry has tunnel-vision on their area and overestimates its importance. They'd end up plastic-wrapping(/suffocati

Yes. Pretty much everyone I know in such an industry has tunnel-vision on their area and overestimates its importance. They'd end up plastic-wrapping(/suffocating) us to prevent [malware, terrorism, power-grid collapse, etc] if they could - that's their only metric because they spend all day thinking about it. If you step back and look at terrorism and hacking and traffic fatalities on the same level you can make rational plans to actually help the most people - then assign tasks to the agencies. They certainly can't set their own goals. So no, I really don't think the NSA has a rational (ie, cost/benefit) balance of attack/defense from our (citizens who want to live long wealthy lives) PoV. It's our job to regulate that.