Activists protesting fossil fuels were seen throwing tomato soup on Vincent van Gogh's "Sunflowers" painting in London's National Gallery on Oct. 14. (Video: Rich Felgate @Finitedoc) Read more: https://wapo.st/3TqqAl9. Subscribe to The Washington Post on YouTube: https://wapo.st/2QOdcqK Follow us: Twitter: https://twitter.com/washingtonpost Instagram: https://www.instagram.com/washingtonpost/ Facebook: https://www.facebook.com/washingtonpost/