“The first time you blow someone away is not an insignificant event. That said, there are some assholes in the world that just need to be shot.”
Addressing a gathering of 200 Marines in al Asad, as quoted in the Armed Forces Journal article "Fiasco", published on August 1, 2006. http://www.armedforcesjournal.com/fiasco/
Context: The first time you blow someone away is not an insignificant event. That said, there are some assholes in the world that just need to be shot. There are hunters and there are victims. By your discipline, cunning, obedience and alertness, you will decide if you are a hunter or a victim. It’s really a hell of a lot of fun. You’re gonna have a blast out here!
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James Mattis 24
26th and current United States Secretary of Defense; United… 1950Related quotes

Committee on Energy of Commerce Hearing: Gasoline: Supply, Price, and Specifications https://house.resource.org/109/org.c-span.192444-1.pdf, May 10, 2006
to Representative Anna Eshoo, on her citing ExxonMobil officials saying they don't want to build any new refineries in North America

Misattributed
Source: thought to be Gibson's words as a result of Twitter attribution decay, despite repeated disavowals. https://twitter.com/#!/GreatDismal/status/144940064990961664 https://twitter.com/#!/GreatDismal/status/144941061578559488 https://twitter.com/#!/GreatDismal/status/144941447936884736 https://twitter.com/#!/GreatDismal/status/171091202161131520. The source, according to Gibson, is Steven Winterburn https://twitter.com/greatdismal/status/119133581598666752 https://twitter.com/5tevenw/status/73091190475595776. However, Steven Winterburn is NOT the original creator of that quote. The original quote is the creation of Twitter account holder "@debihope" https://twitter.com/debihope?lang=en. See research by quoteinvestigator http://quoteinvestigator.com/2014/10/25/diagnose/.

Source: Transmetropolitan, Vol. 1: Back on the Street

Stated about Abu Ghraib (May 4, 2004), quoted in — [Stanford, David, Doonesbury.com's The War in Quotes, Andrews McMeel Publishing, 2008, 77, 16900868M, 0740772317, 9780740772313, 2008024621]