Index: /trunk/BNC/txt/frankfurt.tex
===================================================================
--- /trunk/BNC/txt/frankfurt.tex	(revision 5601)
+++ /trunk/BNC/txt/frankfurt.tex	(revision 5602)
@@ -97,4 +97,8 @@
 \frametitle{Tempora mutantur (and maybe ``nos mutamur in illis'')}
 
+\begin{center}
+  \includegraphics[width=0.7\textwidth,angle=0]{pp_vs_rt.png}
+\end{center}
+
 \end{frame}