Today I was doing my mandatory EAR/ITAR online training (fun stuff!), and one thing struck me about the concept of deemed exports. With it, the training course mentioned that it can be a deemed export if information/material is transferred to a foreign national while on US soil. But also said that it is not a deemed export if the recipient is a US citizen, LPR or in a protected class (such as refugee).
But this leaves out the concept of dual nationality citizens. For example if I want to transfer something to a US citizen, who also has dual nationality of a country where the transfer could be prohibited, how is that transfer classed?
Does the US or foreign nationality take precedence in this case? I'm certain it would be a Bad ThingTM to do either way, but the training course never touched on it.