"The Seeger Court recognized that the exemption provision needed to “deal[] with the beliefs of different individuals who will articulate them in a multitude of ways,” and focused its test simply on the sincerity of the individual’s conscientious objection. Even this broadened approach to conscientious objection remains focused on individuals who are opposed to participating in any war, as opposed to those who are opposed to participating in a particular war. This leaves certain people who have moral objections to participation in particular wars—for example, someone who subscribes to “just war theory,” which condemns some, but not other, wars—without protection."