Ping!
I am convinced that we or the world will do nothing.
Bttt
There was a FReeper who suggested we launch attacks on NK on May Day, which would wipe out two-thirds of their army.
PSI is a good thing, and definitely is a cause for concern to the missile proliferating and narcotic exporting Kim regime.
I believe the boarding of the So-San (NK ship covertly shipping missiles to Yemen circa Dec 02) fell under the then nascent PSI, so this thing has teeth.
Intercepting air exports, of course, is a little more delicate, but not without precedent (cf intercept of EgyptAir 737 harboring PLF Achille Lauro highjackers in 85).