At a memorial for victims of the Fort Hood shootings, President Obama said the killer will "be met with justice in this world and the next." We focus on the legal challenges for the alleged shooter, Maj. Nidal Malik Hasan, in this world. Hasan will probably face a long and complex trial, but only after an equally complex assessment of his mental health. We speak with Eugene Fidell, who teaches military law at Yale Law School and is president of the National Institute of Military Justice. We also speak to New York Times national security reporter Scott Shane, who gives us the latest on the case.