Elon Musk regrets “some” of his recent posts about U.S. President Donald Trump. Phew! But their relationship’s rapid unscheduled disassembly, or RUD, reveals how vulnerable civil and national security missions, even the “Golden Dome” program, are to the dramatic vagaries of this relationship. Laura Winter speaks with Todd Harrison, Senior Fellow, American Enterprise Institute, and much respected NASA and Defense Department budget diviner.