There's no such thing a zero risk with anything we ingest, just that some things are less harmful than others.

I don't know about roundup & glyphosate & the detail of the article is way over my head...................but

I took up vaping 5yrs ago in order to stop smoking & almost immediately noticed an improvement in my health. I've been following the ins & outs of it all too, so here are some of them.

PHE (Public Health England) estimates that there is a 95% harm reduction compared to smoking.

Proplyene Glycol has been used in asthma inhalers for decades without a problem so how come in ecigs it's suspect.

Vitamin e acetate is not an ingredient in any liquid on sale in the UK, & probably not in the US either, but due to different regulatory regimes I couldn't swear to that. However, some of the liquid I buy is made in California & one can contact the lab where it is analysed for a breakdown of the ingredients to confirm it doesn't contain either that or diacetyl something or other, another no no.

The outbreak of respiratory failure in the US recently connected to vaping was due entirely to black market cannabis products made with oil. There is no oil of any sort in legitimate vaping liquid.

Tobacco companies stand to lose big time if people switch to vaping unless they can either stop the trend or work out how to get in on the action.

Tobacco pays political lobbyists in the US megabucks.

People who want to stop other people from doing whatever it is they have a bee in their bonnets about just need to fuck off, however many letters they have after their name.