The only concerns US may have in launching such a strike is the potential spread of radioactive materials from such a strike. You are correct to assume that US will try to emulate the successful Israel strike on Iraq facilities back in 1981 (was it repeated 2-3 years later??).
My only guess is that US better watch out, thier track record in surgical strikes/actions sucks (Libya) because the politics tends to overtake the miltary considerations (OP Eagle Claw (Iranian Hostage rescue), Grenada etc.) and everyone wants to ave a share but too many cooks spoil the soup.
Israel also muddying the waters see
http://www.globalsecurity.org/org/news/2005/050221-iran.htm