--- a/blob1.tex	Mon May 31 23:42:37 2010 -0700
+++ b/blob1.tex	Tue Jun 01 11:08:17 2010 -0700
@@ -25,24 +25,6 @@
 
 \textbf{Draft version, read with caution.}
 
-\medskip
-
-\nn{need to remove or at least water down this warning for the arxiv version}
-
-\noindent
-{\bf Warning:} This draft is draftier than you might expect.
-More specifically,
-\begin{itemize}
-\item Some sections are missing.
-\item Many sections are incomplete.
-In most cases the incompleteness is noted, but occasionally it isn't.
-\item Some sections were written nearly two years ago, and are now outdated.
-\item There are not yet enough citations to similar work of other people.
-\end{itemize}
-Despite all this, there's probably enough decipherable material
-here to interest the motivated reader.
-On the other hand, if you are only going to read this paper once,
-{\bf then don't read this version,} as a more complete version will be available in a couple of months.
 
 \nn{maybe to do: add appendix on various versions of acyclic models}