Youch! What happened?

It's cute that you actually believe that.

Yeah, because the police would never make false statements, plant evidence, invent probable cause, or lie to the media in pursuit of a headline-grabbing sting operation with no element of public service to it.

I know, which is why they would want to hide their true hashpower if it ever reaches that point. So how do we know they're not already at 51%+?

Yes. I don't understand how Bitcoin can ever be secure if the incentives to centralized mining pools are strong enough to grow a single pool operator to a known 42% of the network hashower. If I were running Ghash.IO, I'd be hiding some of that quietly, over time, so I can own 51% or more and control the network without anyone realizing it.

They don't have to stamp each solved block with their brand, can't they be sitting on 51%+ even as we speak? How would we know?