It isn't a question of ethics, but rather a question of common sence. Alright, let's imagine for a second.
Cloning is leagal.
People are alowed to do it. For starters the gene pool of the world wont be as diverse as it is now. Well, I see some nasty genetic diseases. This may not be in the near, near future, but certainly later on. People following celebrities, jumping and pulling a strand of hair for that one cell, that one cell that can get them thousands of dollars.