> Should someone be allowed to sneak into a company's building, or pretend to be an honest employee, just to investigate potential wrongdoing? That's the government's job, not private activists'.

So Upton Sinclair was wrong to go undercover to gather material for his book The Jungle?

In case you're not aware, until the 80's, American law practically encouraged a level of industrial espionage, because it discouraged reliance on trade secrecy and therefore encouraged the dissemination of knowledge. And yes, because it enabled undercover investigations of wrong doing, both the illegal and what ought-to-be illegal.