OP is silly.
As has been pointed out, he is just describing the plot of The Island which he probably heard / saw somewhere.
Human cloning is not a reality of the future. If the existence of such technology existed, which it doesn't to the standard you are describing, it would not automatically overrule the ethical issues that would completely strangle any possibility of it becoming a reality.
There will never be a time in a civilized society where killing people for organs, clone or otherwise, becomes an acceptable norm.
As has also been mentioned, the ability to grow replacement body parts is a technology that real focus is being put on and progress is being made. Already a trachea was grown using stem cells to complete a surgery that saved a cancer patient in 2011. This side of research will continue to dominate. Fantasy sci-fi clones will not.