When it comes to the powder there is no problem, your friend can fill his suit case, when it comes to the fresh I am not sure, I have only sent it via Fed Ex, I am not sure how the airport will take the fresh root, if it is fresh and whole then they will not pass it with out a inspection sticker, you have to have it inspected and the Department of Agriculture, if the fresh root is in a pulp form it might be different but I do not know when it come to the airport. Aloha.
Chris