An unexpected attack from swarms of venomous wasps killed two American tourists, a father and his son, during a zip-lining trip in Laos. The attack occurred on October 15 but was publicly reported earlier this week. A source close to U.S. diplomats in Laos told The Times of London that the hornets overwhelmed Daniel and Cooper Owen as they descended from a tree at Green Jungle Park, an eco-adventure resort near the city of Luang Prabang. The pair, still conscious, was quickly transferred to a clinic and then to the provincial hospital for emergency attention. However, they died a few...