Multiple comments by NHS and UK Gov officials on the use of Face Masks by the general public in April of 2020, until the UK Gov declared them mandatory, clearly contradicting their previous recommendations.
Other headlines:
https://www.thesun.co.uk/news/uknews/12292821/face-masks-not-necessary-say-holland-scientists/
https://www.thesun.co.uk/news/11848449/face-mask-new-rules-laws-explained/
