A Nile crocodile like the one Joe Wasilewski captured last month near his home in Homestead, Fla., is thought to be lurking near Miami. State wildlife agents have been given a rare order to shoot to kill the young creature. “They get big. They’re vicious. The animals are just more aggressive and they learn that humans are easy targets,” said Mr. Wasilewski, a reptile specialist and veteran wrangler. (Associated Press)