Louisiana Sen. John Kennedy said people who eat imported, "radioactive" shrimp will turn you into an alien, or at the very least cause you "to grow an extra ear." The senator’s strange diatribe may ...

Corrections and clarifications: An earlier version misstated the nature of amoebas, which are single-celled eukaryotic organisms. A single-celled organism known as the “brain-eating amoeba” was found ...