On balance, the Obama administration’s Nuclear Posture Review (PDF) signals more continuity than change. The review wisely clarifies the limited but essential role that nuclear weapons play in safeguarding U.S. national security through deterrence. Unfortunately, it fails to set the stage for dramatic and necessary changes to a bloated and outdated force structure because it reaffirms the U.S. commitment to other countries that imposes a huge burden on our military and on U.S. taxpayers.