The United States has the tools to dismantle the North Korean nuclear program in a massive surprise strike. There are two huge unknowns, however, that prevent an accurate evaluation of the likelihood of an attack. First, we simply do not have a comprehensive or precise picture of the North Korean nuclear program, especially when it comes to number of weapons and delivery vehicles -- we do not know for sure where they are located or how well they are protected. Second, we have no way of knowing just how good the U.S. intelligence picture really is when it comes to the North Korean nuclear program. How confident is the United States in its own information?...