Fridays News at a glance: A further shift will unlock greater potential – Particulate Peril – Delhi: Smoggy City, Foggy Minds – 17th World Conference on Lung Cancer – More positive science emerges – Virtue signalling with other people’s money – Electronic cigarettes: an unjustified prohibition – This UK Leaflet About Vaping – PA vape distributor sues the state – World E-Cigarette Regulations Map – County passes on policing e-cigarettes – Nicotine Science and Policy Daily Digest – Friday, 23 December 2016