diff --git a/Doc.md b/Doc.md
index 15ea3f6..1b090f4 100644
--- a/Doc.md
+++ b/Doc.md
@@ -20,3 +20,5 @@
  * [PeerSelection](PeerSelection), explaining how a Tahoe node chooses which other nodes to use for uploading and downloading files (which raises some unsolved issues in balancing scalability, robustness, performance, and simplicity)  
  * [TahoeIssues](TahoeIssues)/ChangingFilesWhileCopyingThem : what are the semantics of the "upload" action? the upload takes
    non-zero time: what happens if the file is changed during that time?
+
+HMM.  How do I get rid of the attachments, below?  The usecases one is obsoleted by the [UseCases](UseCases) page.  --Zooko