Is this barbaric? Some may say yes, others would say no. But I maintain it is the only viable solution for that country. It has been a pain in the backside of many countries for hundreds of years. It's time to wipe the slate clean and let them start over.
Fire with fire... evil people need good men willing to do evil things, such as killing them like vermin. Good men do not become evil by do doing evil things, but evil people cannot become good conversely. The Taliban are evil; it takes a Good and Great man to destroy this lifestyle.
The problem has a name, and that name is Islam. Can it be reformed? I think there are many good Muslims who would like to try. Who knows?