As a scandinavian I totally agree. The US should learn from Norway and the Breivik mass shooting to see how one deals with madmen. Capture them, put them before a judge just like every other criminal and then unceremoniously lock them up.
To use an analogy, it looks like in the US they would have tortured Breivik for years before letting him to go to face a Trial but without a defense attorney. It's another extreme. Taking into account that the US is the world superpower, much more concerning one.
EDIT: Now thinking about it, Breivik spent a lot of time in France. It's a stretch, but if the Norway had the US attitude, it would just invade France now, lol. My point is that they are really, really over the top with that "terrorism" thing.
The Unites States has a mentality of punishing the perpetrators, often very hard, in order to gain revenge and maybe act as a deterrent to others. This is why the US is one of the onlycountries in the world that use capital punishment, and the country in the world where most people are in prison.
Unfortunately research shows that this doesn't work, as evidenced by crimerates and homicides in the US. Norway takes a different approach, and instead of looking for revenge they ask "how do we prevent this from happening again". This is why there is no capital punishment, why you see drug offenders in nice rehabilitation homes, and why Breivik was convicted like any other murderer within the Norweigan system.
The Norweigan system works, and the American doesn't. Just look at the numbers.
I am a firm believer in the Norwegian style of punishment and rehabilitation. The goal of a justice system is not to punish or get revenge but to create a safe society with little crime, and if rehabilitation does that (which is what I believe) then we should have more rehabilitation.