Retired Army Lt. Col. Alexander Vindman on Sunday called Elon Musk a “purveyor of hate and division” after the new Twitter owner called him “both puppet & puppeteer” in an apparent spamming campaign critical of Musk. Musk called out Vindman after a Twitter user noted he had shared the same message as dozens of other accounts. The copy-pasted message shared by Vindman and others said: “Kinda weird that @elonmusk gets to decide how like a half-billion people communicate. Way too much power for one erratic individual to wield, don’t you think?” Musk knocked Vindman in a reply to the post,...