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Topic
- Political violence 5
- University of Oregon. Office of the President 5
- Civil disobedience 3
- College students--Political activity 3
- Bombings 2
- Clark, Robert D. (Robert Donald), 1910-2005 2
- Nixon, Richard M. (Richard Milhous), 1913-1994 2
- Portland State University 2
- Threats 2
- University of Oregon 2
- Black Panther Party 1
- Bombing investigation 1
- Buildings--Blast effects 1
- Campus disorders 1
- Conflict, Armed (War) 1
- Eachus, Ron 1
- Eugene (Or.) Fire and Emergency Services Dept 1
- Evers, Medgar Wiley, 1925-1963 1
- Freedom of speech 1
- Froines, John R. 1
