In 2017, Banksy painted a giant mural on a wall in Dover, England depicting a worker chiseling a star off the EU flag, by way of a comment on the Brexit vote; now, parties unknown have painted over that mural, whitewashing it. Banksy is philosophical about this development: "Oh. I had planned that on the day of Brexit I was going to change the piece in Dover to this. But seems they've painted over it. Nevermind. I guess a big white flag says it just as well." (via Naked Capitalism) (Image: Dunk, CC BY)
