I get the feeling like this is going to be messy. No country is going to stand up and claim responsibility for the mass murderings. Even if a few individuals or group claims responsibility, no country is going to stand behind them. The US is going to bomb Afghanistan but they will claim innocence and cannot retaliate. Meanwhile this adds fuel to the fire and perhaps we see more commercial airline bombings. Other radical groups see the 'success' (I hate to use that term) of bin Laden's group and will try to hijack planes into another major areas. Who knows if any security system will be sufficient to deter zealots crazed on a suicide mission. I hate to paint the gloomy picture, but it seems to me that the days of fighting big country-to-country wars are over. Small groups terrorize, disperse, and impossible to track down. The only way the US can retaliate is indirectly, through those governments who have supported those groups. And then you're talking about oppressive governments who totally screw over their people, who are more interested in subsisting than fighting a war. And it's those people who will face the brunt of the wrath. It's a cruel irony that the evil actions of a few destroy the many. I concede that the US has really no other option, I'm just sad to see it like this.