Committee of 100 march ‘Against Tyranny’ Committee of 100 demo ‘Against Tyranny’. Demonstrators fill Whitehall, including police, banners etc. Full Size Image Gallery: Political Activism Keywords 1960sactivismactivistAgainst TyrannyatomicB+Wbannersblack and whitecampaignCND logoCommittee of 100crowddemonstrationdemonstratordouble decker busflagsLondonmarchpeace campaignerspeoplepolitical protestpoliticsprocessionprotest and politicsprotest movementrallyresearchSwinging SixtiesWhitehall