I don't recall this particular rule. Not saying that you are not correct, but sources would be helpful. I wouldn't be surprised if that were there, there are al

I don't recall this particular rule. Not saying that you are not correct, but sources would be helpful. I wouldn't be surprised if that were there, there are all sorts of silly rules for visas, specially work-related ones. Now, even if it's not illegal, I'd say it's _unwise_. Leave the protesting to US citizens, as they are afforded more protections.