A British caver who helped rescue 12 boys from a Thailand cave said on Monday he may take legal action against Tesla CEO Elon Musk after the entrepreneur called him a “pedo” on Twitter. Musk has come under fire for launching the extraordinary attack on Vernon Unsworth without providing any justification or explanation, after the cave expert slammed his offer of a miniature submarine to extract the footballers from the Tham Luang cave as a “PR stunt”. The boys and their football coach were rescued from the cave complex by an international team and after a week of intense drama....