Why did they charge the graphic designer and the developers?
I assume because they needed to grab everyone they could in one shot, since they are outside of the U.S., and it can turn out that one or more of them are in fact guilty. Otherwise, they can just disappear and you'll never get the chance again. This actually makes sense if you consider that these laws are aimed at the mafia, and that there is no penalty to the U.S. government for being wrong. EDIT: I find it interest…
I would hope that they would be damn sure when taking such drastic measures. This designer is not even a US citizen nor does he live or reside in the US. Is the onus really on a designer to vet all customers for the legality of every country on earth?
Without knowing details, it sure does seem strange to arrest the designer.