[[File:OpChaosdocumentexcerpt.jpg|thumb|right|250px|[http://www.aarclibrary.org/publib/church/reports/book3/pdf/ChurchB3_9_CHAOS.pdf CIA Intelligence Collection About Americans: CHAOS and the Office of Security (PDF)]]]
'''Operation CHAOS''' or '''Operation MHCHAOS''' was the code name for an American domestic espionage project conducted by the [[Central Intelligence Agency]] from 1967 to 1974, established by [[Lyndon B. Johnson|President Johnson]] and expanded under President [[Richard Nixon|President Nixon]], whose mission was to uncover possible foreign influence on domestic race, anti-war and other protest movements. The operation was launched under [[Director of Central Intelligence]] (DCI) [[Richard Helms]], by chief of [[counter-intelligence]], [[James Jesus Angleton]], and headed by Richard Ober. <ref name="Theoharis06">{{cite book|title=The Central Intelligence Agency: Security Under Scrutiny |last=Athan Theoharis |first=Richard H. |year=2006 |publisher=Greenwood Publishing Group |isbn=0-313-33282-7 |pages=49,175,195,203,322}}</ref><ref name="Napoli05">{{cite book|title=Intelligence Identities Protection Act and Its Interpretation |first=Russell P. |last=Napoli |publisher=Nova Publishers |year=2005 |isbn=1-59454-685-1 |pages=18–20}}</ref> The "MH" designation is to signify the program had a worldwide area of operations.<ref name="Friedman05">{{cite book|title=The Secret Histories: Hidden Truths That Challenged the Past and Changed the World |first=John S. |last=Friedman |year=2005 |publisher=Macmillan |isbn=0-312-42517-1 |pages=278–279}}</ref>
