Cloning is very much in the sights of those scientists now pushing for embryonic stem cell exploitation, and they are now so confident that people like you have embraced their first steps along the slope that they no longer even try to deny their interests in 'therapeutic cloning for stem cells'.
Feel free to download the manuscript at this link, or I'll send to you a diskette (even paying the mailing charges) of the manuscript. You can read the articles cited that reveal the facts of what these researchers are planning.
The problem is that the so-called "slippery slope" to which you refer can be taken to some pretty fantastical extremes by people with an agenda they wish to hype or with potential constituents they wish to terrify. Thing is, a few scientists no more represent ALL of them than a few Christians represent ALL of them.
Why don't we deal with the discussion as is, instead of creating scenarios for the next remake of Twilight Zone, okay?