https://digitalcollections.library.ucsc.edu/Documents/Detail/robert-levinson-professor-of-computer-and-information-sciences/31191
Robert Levinson, professor of computer and information sciences - Digital Collections
Robert Levinson, professor of computer and information sciences, 1986-09-30, UCSC Photography Services photographs, Fukuda, Don, The Photography Services...
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https://petitions.obamawhitehouse.archives.gov/petition/help-fbi-agent-robert-levinson/index.html
Help FBI agent Robert Levinson | We the People: Your Voice in Our Government
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https://www.knau.org/2016-05-03/missing-man-examines-ex-fbi-agent-robert-levinsons-mission-to-iran
'Missing Man' Examines Ex-FBI Agent Robert Levinson's Mission To Iran
Sep 20, 2021 - Steve Inskeep talks to New York Times reporter Barry Meier about his investigation into Robert Levinson's disappearance, chronicled in his book Missing Man:...
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