  One reason for thinking (ST1)–(ST3) false is that in addition to concerns about knowledge skepticism treated above, skeptical theism has been accused of various kinds of moral skepticism (Russell 1996; Almeida and Oppy 2003, 2004; Graham and Maitzen 2007, 2009). The main threat comes from the open possibility – given (ST1)–(ST4) – that we can never know which action will have the best outcome. Indeed, we can't even sensibly assign probabilities to which acts will have the best outcome. So, to illustrate the point, suppose you are witnessing an attempted killing that you could easily prevent by intervening. According to the approach under consideration, you cannot sensibly assign any probability to the proposition that the one being killed is a dangerous terrorist who is the target of an emergency assassination. So it seems that you can't possibly conclude that preventing the killing is the best thing to do. And if not, then how could you rightly do it?