http://en.m.wikipedia.org/wiki/United_States_incarceration_rate
http://www.bioedge.org/index.php/bioethics/bioethics_article/9897
http://www.washingtonpost.com/wp-srv/special/local/planthardinesszones/index.html
http://www.bbc.co.uk/news/world-asia-16589052
http://pda.physorg.com/news/2012-01-quasicrystal-extraterrestrial.html
http://mobile.nytimes.com/2012/01/13/science/smaller-magnetic-materials-push-boundaries-of-nanotechnology.xml
http://pda.physorg.com/news/2012-01-implanted-biofuel-cell-bug-chemistry.html