The reason why it was always difficult to maintain neutrality between the French and the British government during the early days of its existance was because United states were helped by the French to gain independence from Great Britain. This obviously affected the relationships between these countries once the US gained independence.
Answer:
The invention of new technologies like cramped planes, or busses, or even ships, has helped disease spread by providing it with a faster way to travel around on poeple and expand more.
So they went to extreme measure to prove that congress is the easiest way without having to spend alot, take up precious time, waste resources, or get people killed, to go about bringing the issue with Mexico to a stop..