Should the United States Adopt British English Spelling?

I am not speaking of the way we talk here in the US but simply the way that we spell words. I have many friends and family members who live in the UK,Canada, and Australia and I got confused learning the Uniquely American ways to spell color, honor, gray. center and other words. I thought that I was just butchering these words and being stupid when I was a kid by adding U's and "re" at the end of words rather than "er" . Should the USA recognise the way that the rest of the English speaking world spells? It would make things much easier.