NCIS on Twitter: "“Social media, Jethro, is a cesspool of questionable human behavior” -Ducky “Just like your day job” -Gibbs #NCIS http://t.co/axpe3oKFgR" / Twitter
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![NAVY NCIS : NAVAL CRIMINAL INVESTIGATIVE SERVICE aka NCIS MARK HARMON as Special Agent Jethro Gibbs Date: 2003 Stock Photo - Alamy NAVY NCIS : NAVAL CRIMINAL INVESTIGATIVE SERVICE aka NCIS MARK HARMON as Special Agent Jethro Gibbs Date: 2003 Stock Photo - Alamy](https://c8.alamy.com/comp/K3KXNE/navy-ncis-naval-criminal-investigative-service-aka-ncis-mark-harmon-K3KXNE.jpg)