President Barack Obama has done more in a few short hours to protect the security and uphold the values of the United States than his predecessor did throughout his long eight years in office. Guantánamo will be closed. The secret CIA prisons will be shut down. And torture and other "enhanced interrogation techniques" will be prohibited. Much work remains to be done, but President Obama has begun his administration by sending a clear signal to friend and foe alike: America is back and ready once again to lead the community of nations toward a future that is both more secure and more free.