"He who does not think himself worth saving from poverty and ignorance by his own efforts, will hardly be thought worth the efforts of anybody else." -- Frederick Douglass, Self-Made Men (1872)
And as for Japan protecting themselves, they'd do quite fine at it. They are prepared to abandon US security and pursue self interest if the need ever arise.
North Korea is expected to deploy a nuclear-tipped missile capable of reaching parts of the United States in the next decade, despite two long-range missile flight-test failures, according to the Pentagon's ballistic-missile defense review.
The review report, made public this week, concluded that missile threats from several states, including Iran, Syria, China and Russia, are growing "quantitatively and qualitatively," and it outlined Pentagon plans for silo-based and mobile anti-missile systems to counter them.
Nuclear missile threats to U.S. mount - Washington Times
"Muslims are OBLIGATED to raid the lands of the infidels, occupy them, and exchange their systems of governance for an Islamic system. . .They say that our sharia does not impose our particular beliefs upon others; this is a false assertion. For it is, in fact, part of our religion to IMPOSE our particular beliefs upon others." -bin Laden
Yes I hear the only way to prevent being nuked is to be able to nuke back.