I myself would certainly like to go after that cache. But I would more than likely go through Ft Kent to get it. The advantage of having a valid passport. I do however agree with you that having the border patrol detain you for walking "near" the border would be a huge violation of my civil rights as a US citizen. I am by no means a political rabbel-rouser, but I am also not a fan of undo process. But that is just my opinion.