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[See sidebar on Evolving policies on menthol flavored cigarettes.] Researchers divided participants according to whether they were menthol smokers and those who did not smoke menthols, based on the flavor of their usual brand before the removal of menthol flavors

It operates solely at the behest of and under the direction of Congress

More holes = better airflow

Though the industry is highly regulated the National Tobacco Control Act 2015 was signed into law by the last administration in 2015

House Finance Committee Chairman Helio M

Crucially, the law did not require physical barriers between sections, allowing secondhand smoke to drift into non-smoking areas