Whilst I disagree with the death penalty, I've no problem with the army shooting litterers on sight.
I've been planning a post for a while about taxation systems and negative externalities, but as I'm busy I'll just link to this rather gladdening article: http://switchboard.nrdc.org/blogs/lmonroe/marine_plastic_pollution_produ_1.html?utm_source=tw&utm_medium=tweet&utm_campaign=blog