When Jesus Marquez was in middle school, he dreamed about being a secret agent, never imagining he would actually get to work at Pantex as part of Amarillo College’s STEM Scholars Program. Marquez, ...

The most popular of the items that he sells? Bumper stickers that say, in all-caps, “I Bought This Before We Knew Elon Was Crazy.” For his vacation, Mr. Hiller asked a friend to cover for him.