Wretchard’s redesign is clearly better than the UN we have now, but I’d suggest an even better replacement: nothing.

Seriously, let’s have half a century of dealing with long- and medium-term problems via ad hoc coalitions of the willing, and see how the results compare. As for emergencies, why not just let the US Navy and Marines deal with them? That’s what ends up happening anyway, to a large extent, so we might as well be honest about it. Sure, it’s not really fair that the US fronts the cost for all this, but (a) emergency deployments can be useful training/preparedness exercises, and (b) the cost would hurt a lot less if we were no longer paying for the Useless Debating Society, too.