The most serious threat to the United States is not a physical terrorist attack, but a cyber-related one. In Washington, you can probably count on one hand the issues that both Republicans and Democrats can agree on — this is certainly one of them. The inevitability of such a catastrophic event and the destruction that it could cause is a nightmarish scenario that without a doubt keeps our elected officials and military leaders awake at night. The question isn’t “If …?” but “When …?”