Small Flying Insects

These are abundant in the tropics, and there is even a museum for them in Costa Rica, where I live.

The first attempt to build a Panama Canal, by the same French company who built the Suez Canal, failed because control of the insect population was not undertaken.

The first American effort was controlled by its Military, who were not interested in insect control either. They were replace by Civilians, and the Canal was completed successfully.

The control of the Military by Civilians was a basic principle that made the US successful. And made Latin American countries unsuccessful.

This was also true much earlier, when the American capital was Philadelphia, where many died from insect-born diseases, and the physicians only used bleeding to solve the problem.