"someone stole my red dirt!"Smiley Face said:What happens when there's disagreement/crime?
In all serious though, they're going to be pretty heavily screened and trained against 'the crazies.' I know there's still a chance, but there always will be, even in 50-100 years. There's a long term need for humanity to reach Mars, eventually, and we need to take that giant leap at some point; even with 'the crazies' risk. So why not now?
Personally, I think this is an incredible idea and will be the biggest achievement of mankind. I couldn't do it, as much as I would like to think I could. Sure, seeing space/Mars would be incredible, but only for a while until it gets boring. I take my hat off to all those who do get chosen!
One thought though, We're basically going to be colonising by extensive incest. Come 2070 everyone up there will be someone else's mother/father/aunt/uncle/brother/sister et al