The new NPR was released and outlines U.S. nuclear policy. The 2010 NPR is significant becasue it renounces the development of any new nuclear weapons. Additionally, the NPR rules out the possibility of a U.S. nuclear attack against non-nuclear-weapon states who are in compliance with the Nuclear Non-Proliferation Treaty. However, it is important to note that this provision excludes both Iran and North Korea. You can view the Full Report at your convenience.