What author was labeled a traitor for broadcasting from Germany to America in 1941?

So, whilst all this is technically true, it didn't tarnish his name for long. He continued to write humorous novels and short stories for the next 30+ years and was massively popular in the US and the UK, still writing right up to his death at the age of 93. He was given a knighthood by his country of birth shortly before his death. So, no hard feelings...

cheeeze, ha ha