diff --git a/browser/liquid/body.pt b/browser/liquid/body.pt
index b2dd189..3e303ea 100644
--- a/browser/liquid/body.pt
+++ b/browser/liquid/body.pt
@@ -37,7 +37,8 @@
       </metal:content>
     </div>
 
-    <div id="sub-section" metal:define-macro="sub-section">
+    <div id="sub-section"
+         tal:condition="view/isAuthenticated">
       <tal:portlet repeat="macro controller/macros/portlet_right">
         <metal:portlet use-macro="macro" />
       </tal:portlet>
diff --git a/browser/liquid/presentation.css b/browser/liquid/presentation.css
index 03aca40..8648de0 100644
--- a/browser/liquid/presentation.css
+++ b/browser/liquid/presentation.css
@@ -7,7 +7,7 @@
     margin: 4em;
 }
 
-.top, #header, #menu, #sub-section, #footer, .object-actions {
+.top, #header, #menu, #sub-section, #footer, .object-actions, .button {
     display: none;
 }
 
diff --git a/browser/liquid/print.css b/browser/liquid/print.css
index 4cf0a59..f35ecba 100644
--- a/browser/liquid/print.css
+++ b/browser/liquid/print.css
@@ -3,7 +3,7 @@
 
 */
 
-.top, #header, #menu, #sub-section, #footer, .object-actions {
+.top, #header, #menu, #sub-section, #footer, .object-actions, .button {
     display: none;
 }
 
@@ -11,4 +11,3 @@
     width: 100%;
     color: Black;
 }
-
diff --git a/browser/view.py b/browser/view.py
index 7d73c83..93db373 100644
--- a/browser/view.py
+++ b/browser/view.py
@@ -27,6 +27,7 @@ from zope.interface import Interface, implements
 from zope.cachedescriptors.property import Lazy
 from zope.publisher.interfaces.browser import IBrowserSkinType
 from zope.app.pagetemplate import ViewPageTemplateFile
+from zope.app.security.interfaces import IUnauthenticatedPrincipal
 
 
 mainTemplate = ViewPageTemplateFile('main.pt')
@@ -84,6 +85,10 @@ class GenericView(object):
         # this is useful for a top-level page only
         return self.index(*args, **kw)
 
+    @Lazy
+    def isAuthenticated(self):
+        return not IUnauthenticatedPrincipal.providedBy(self.request.principal)
+
     def setupSubviews(self):
         pass