I am not sure what their frustration is. But it could be something selfish that won't really benefit the entire population - just themselves. When you think about society, you think in the utilitarian perspective. If giving them what they want will only benefit their group and not society as a whole, then it's pretty much a lost case. We did learn from their sentiments but we've also learned since time immemorial that you can't always please people and that there's always going to be a group with a twisted way of expressing their sentiments. These people need to stop their selfishness.I'm not saying that they should not be incarcerated, but don't you think we could learn from them? By learn, I mean understand their frustrations so we can deal with that problem before they recruit more members.