anchor.diff:      case sanitize_file_string(File) of
           ok ->
               {ok, Pid} = machi_flu_metadata_mgr:start_proxy_pid(FluName, {file, File}),
  -            machi_file_proxy:read(Pid, Offset, Size);
  +            case machi_file_proxy:read(Pid, Offset, Size) of
  +                %% XXX FIXME 
  +                %% For now we are omiting the checksum data because it blows up
  +                %% protobufs.
  +                {ok, Data, _Csum} -> {ok, Data};
  +                Other -> Other
  +            end;
           _ ->
               {error, bad_arg}
       end.
  
positive.code: 
  sanitize_prefix(Prefix) ->
      %% We are using '^' as our component delimiter
      case re:run(Prefix, "^|/") of
          nomatch ->
              ok;
          _ ->
  
negative.code:     %% TODO: Do anything with PKey?
      try
          TaggedCSum = check_or_make_tagged_checksum(CSum_tag, Client_CSum,Chunk),
          R = {seq_append, self(), Prefix, Chunk, TaggedCSum, ChunkExtra, EpochID},
          FluName ! R,
          receive
              {assignment, Offset, File} ->
                  Size = iolist_size(Chunk),
  