This sends a powerful message to the whole world in a language Neanderthal man would have understood. These guys took on the USA and its allies, and now they are dead. That will help quell further bad behavior from any number of sources. Plus, its plain justice that these mass murderers have been killed. Anyway, they were participating as commanders in an ongoing war against the USA, so they were military targets. Another factor is the ongoing fear in Iraq that the regime will return, that the US and the other Coalition countries will just cut and run. Hunting down and killing Uday and Qusay sends a message to the Iraqi people that the victorious powers are serious about tearing out the former regime root and branch. That will help create confidence and cooperation among the Iraqi people. All in all this 100% good news.
Anyway, read the whole thing.