That's funny, though not surprising.
I saw that on the news this morning. The fist thing that came to mind, seems to be what we were all thinking, "How could they tell?"
It won't make a bit of difference to the people that don't know much about beer and drink Anheuser products....or any watery lager.
They probably still think it's an American company. It's owned by Belgian-Brazilian brewing company InBev.
Brand loyalty is a tough psychology to over come; the news won't change a thing for them.
To be fair. They never claimed to brew to German beer purity laws. If it's claimed in the USA it's just a marketing ploy.
Always an adjunct beer, as most of the mass produced lagers sold here are.