Re: Political agendas
The whole Covid19 controversy is so politicized, that some people create fake scientific papers to advance their agenda and then withdraw it again later - knowing that the initial publication will be widely commented on, while the withdrawal will be mostly ignored: https://www.theguardian.com/commentisfree/2020/jun/05/lancet-had-to-do-one-of-the-biggest-retractions-in-modern-history-how-could-this-happen
Biting the hand that feeds IT
