In today's top stories, Elon Musk over the weekend pushed for greater oil and gas output and urged Europe to turn toward nuclear power for its energy needs. The Tesla chief's tweets came as US gasoline prices rose and a Ukrainian nuclear plant was seized amid Russia's war in Ukraine. In other news, a team of researchers has come up with a translator of sorts for pigs. It's a computer algorithm that interprets all those different pig grunts as emotions.