John Hanna.

The U.S. government is preparing to breed billions of flies and drop them from airplanes over Mexico and even southern Texas. It is a big part of the government’s plans for protecting the U.S. from the New World screwworm fly. The pest spawns flesh-eating larvae that could devastate the American beef industry, decimate wildlife and even kill household pets. The weird science worked decades ago to largely eradicate the fly from the U.S. It involves breeding male flies and sterilizing them. Once released, they mate with wild females, and the fly population drops. The U.S. hopes to have a fly factory up and running in southern Mexico by July 2026.