Then use the car industry as an example: the American car manufacturers' internal combustion engines looks identical to those of the the Germans.

To quote you: "who figured out how to build them first."

In the Toyota factory museum in Japan they aren’t exactly ashamed of the fact that they bought, disassembled, and reverse engineered a Chrysler for their first few cars.

That's the opposite of espionage. Imitation is the sincerest form of flattery.

Reverse engineering is a legal form of IP imitation everywhere.

Isn't some engineer opening up a box and taking pictures something mentioned in this indictment?

That was one of the simpler ones. They are also alleged to have stolen router firmware. But frankly if you've ever tried to just "take over" even an open source project it's not a trivial task to just take someone's source code and be able to master it.

In fact it's a standard open source business model to make money off the expertise on the open source code base.

Indeed, but it’s not the Japanese whining all day and all night about how the Chinese are stealing their precious gifts to the world. :)