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News articles from the time describe how Briggs continued to improve his designs and stayed active in the business world

Following a confrontation with the Trades Union Congress, which strongly opposed the proposals, and internal dissent from Home Secretary James Callaghan, the government substantially backed-down from its intentions

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"Physiological, Chemosensory, and Genetic Influences of Menthol and Other Flavors in Tobacco Products", Eliminating Tobacco-Related Disease and Death: Addressing Disparities: A Report of the Surgeon General [Internet] , US Department of Health and Human Services, retrieved 2026-07-14 "The role of menthol in cigarettes as a reinforcer of smoking behavior"