No they wouldn't need that, there is plenty of evidence to investigate here without the need to buy half of the world's production of hard drives in perpetuity. What's needed is law enforcement's cooperation to bring the perpetrators to justice—that might be a little harder to do actually, but as the scale of this sort of things increases even the most crooked of eastern bloc countries are going to start getting a few offers they can't refuse.

If you imagine the NSA minus the espionage, isn't that basically the FBI computer crimes division?

But with a real budget and people who are actually trained for the job.

That is not the only approach. False dichotomy.

Except they're not doing that. Quite the opposite infact, they've invented a lot of the malware themselves. maybe this too. If I cant have my cake at least i can choose not to fucking pay for someone else(taxes). Smartass.