<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/54cfcdaa4d784_-_nuke_slideshow_495x170_101310.jpg>
<http://www.popularmechanics.com/military/weapons/a6169/behind-the-scenes-at-a-nuclear-alert-facility/>