Also, I wasn't going to post this after Johnny's tirade, but England, your empire is over. It's time to accept this. Rome had a nice little empire once, and it fell apart, and now there are how many Romance languages? I realize that you invented the language, but now most of it's native speakers are in other countries, and we're going to use it in ways that make sense to us. You can bitch about it and claim that all that other stuff isn't really English the way France does with French, or you can sack up, recognize that the sun has set, and think about how cool it is that language can still change.
The American Biscuit and the English Biscuit share a common ancestor, but our biscuits in more or less their modern form are a staple of Southern cuisine and have been since just after the civil war. If a southerner serves you something he calls a biscuit, it's fairly likely he made it the way his mama taught him, the way she learned from this old lady who lived in town and took care of her as a child, and the way she learned from her grand-daddy who learned it from his mama who started making it after she was freed, but still poor and in need of a cheep sort of bread. That's a pretty damn strong heritage for the definition of biscuit, and I don't see anyone really caring that someone from a country that they haven't been to thinks it more accurately resembles a scone.