Misawa Security Operations Center

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The Misawa Security Operations Center (MSOC), nicknamed Security Hill, is a U.S. military and National Security Agency (NSA) signals intelligence facility located on Misawa Air Base in Misawa, Aomori, Japan.{{cite web |url=https://www.misawa.af.mil/About-Us/Fact-Sheets/Display/Article/402304/misawa-security-operations-center/ |date=March 17, 2009 |access-date=October 13, 2021 |title=Misawa Security Operations Center |work=Misawa Air Base |publisher=Misawa Air Base}}{{cite news |last=Gallagher |first=Ryan |author-link=Ryan Gallagher |title=Japan made secret deals with the NSA that expanded global surveillance |date=April 24, 2017 |website=The Intercept |url=https://theintercept.com/2017/04/24/japans-secret-deals-with-the-nsa-that-expand-global-surveillance/ |access-date=October 13, 2021}} The center's history began in 1953, when the U.S. Air Force 1st Radio Squadron Mobile established a facility at the site. The center expanded in the 1970s, and by the 1980s it employed around 2000 people.{{cite news |last=Gittler |first=Juliana |title=Security Hill marks 50 years of silent service |date=September 7, 2003 |newspaper=Stars and Stripes |url=https://www.stripes.com/news/security-hill-marks-50-years-of-silent-service-1.11105 |access-date=October 13, 2021}} {{As of|March 2009|post=,}} the center monitored “over 8000 signals on 16 targeted satellites”, according to the NSA. {{As of|2003|post=,}} the center employed around 900 people.