http://mentalfloss.com/article/56157/11-incredible-acts-courage
http://www.businessinsider.com/7-incredible-stories-of-heroism-on-911-2015-9
https://m.youtube.com/watch?v=WqYwrn1xRlE
https://m.youtube.com/watch?v=5bP1f_1o-zo
http://www.historyisaweapon.com/defcon1/kirkbloodsvietnam.html
http://www.businessinsider.com/7-incredible-stories-of-heroism-on-911-2015-9
https://m.youtube.com/watch?v=WqYwrn1xRlE
https://m.youtube.com/watch?v=5bP1f_1o-zo
http://www.historyisaweapon.com/defcon1/kirkbloodsvietnam.html