Elon Musk said Sunday he planned to upgrade his security after a left-wing German magazine labeled him an enemy of the people. Musk held a town hall discussion in Pittsburgh, Pennsylvania, on Sunday in support of former President Donald Trump’s candidacy. While talking to the crowd, Musk commented on the heightened political atmosphere as the nation approached the November presidential election. He noted he was recently on the cover of Der Spiegel, which labeled him “Public Enemy No. 2” — the first being Trump. “I’m like, enemy number 2 of what? Uh, democracy? I mean I’m pro-democracy. I’m literally trying...