Every problem is not ours...

The Washington Times reports:

• North Korea said yesterday it has taken a key step to build more nuclear bombs, as China resisted efforts by the United States to take a tougher stand with Pyongyang.

Assuming this is true, it begs the question: why are we so concerned with a nuclear North Korea when her neighbors are not?

Are we really better off being world policemen? Hasn't that policy had some negative results in the Middle East? Are we making the same mistake in SE Asia?