493b876f63894c017c1659b03a896324749a809e
rhead
  Mon Apr 18 16:51:40 2011 -0700
On the snp132 announcement, tried to make the sentence about multiple mappings more readable and informative... thanks, Mark.
diff --git src/hg/htdocs/indexNews.html src/hg/htdocs/indexNews.html
index 70a8ca5..19d84d2 100644
--- src/hg/htdocs/indexNews.html
+++ src/hg/htdocs/indexNews.html
@@ -80,34 +80,37 @@
                         <td>17,899</td>
                         <td>18,084 *</td>
                       </tr>
                       <tr>
                         <td>Mult. SNPs (132)</td>
                         <td>1,114,599</td>
                         <td>3,568,988</td>
                       </tr>
                       <tr>
                         <td>All SNPs (132)</td>
                         <td>30,030,754</td>
                         <td>33,026,121</td>
                       </tr>
                     </table>
                     <P>
-                    * There are more mappings than SNPs for the Common and Flagged
-                    subsets because multiple mappings to alternate haplotype sequences
-                    or the pseudoautosomal regions on X and Y don't disqualify a SNP
-                    from consideration as uniquely mapped.
+
+                    * The Common and Flagged tracks have more mappings than SNPs due to the
+                    alternate haplotype sequences and the pseudoautosomal regions on X and Y.
+                    SNPs are considered uniquely mapped if they map only once to a haploid
+                    reference genome.  These regions add non-haploid sequence to the reference
+                    genome; therefore, multiple mappings involving these regions are still 
+                    considered unique.
 		    </P>
                     <P>
                     You will find the four SNPs (132) tracks on the Human Feb. 2009
                     (GRCh37/hg19) browser in the &quot;Variation and Repeats&quot; group.
 		    </P>
                     <P>
                     Many thanks to dbSNP at NCBI for the data, and to 
                     <a href="http://www.gs.washington.edu/faculty/king.htm"
                        target=_blank>Mary-Claire King</a>                    
                     at the University of Washington for helpful comments that motivated
                     us to enhance our dbSNP annotations. The tracks were produced at UCSC
                     by Angie Hinrichs, Brooke Rhead, Bob Kuhn, and Jim Kent.
 		    </P>
 
                     <HR>