diff --git a/app/admin.py b/app/admin.py
index e2057b8..f1c0409 100644
--- a/app/admin.py
+++ b/app/admin.py
@@ -199,12 +199,22 @@ def admin_inbox(
         else None
     )
 
+    actors_metadata = get_actors_metadata(
+        db,
+        [
+            inbox_object.actor
+            for inbox_object in inbox
+            if inbox_object.ap_type == "Follow"
+        ],
+    )
+
     return templates.render_template(
         db,
         request,
         "admin_inbox.html",
         {
             "inbox": inbox,
+            "actors_metadata": actors_metadata,
             "next_cursor": next_cursor,
         },
     )
@@ -475,6 +485,8 @@ def admin_actions_new(
     content: str = Form(),
     redirect_url: str = Form(),
     in_reply_to: str | None = Form(None),
+    content_warning: str | None = Form(None),
+    is_sensitive: bool = Form(False),
     visibility: str = Form(),
     csrf_check: None = Depends(verify_csrf_token),
     db: Session = Depends(get_db),
@@ -491,6 +503,8 @@ def admin_actions_new(
         uploads=uploads,
         in_reply_to=in_reply_to or None,
         visibility=ap.VisibilityEnum[visibility],
+        content_warning=content_warning or None,
+        is_sensitive=True if content_warning else is_sensitive,
     )
     return RedirectResponse(
         request.url_for("outbox_by_public_id", public_id=public_id),
diff --git a/app/ap_object.py b/app/ap_object.py
index 59d0187..5c2224c 100644
--- a/app/ap_object.py
+++ b/app/ap_object.py
@@ -131,6 +131,10 @@ class Object:
 
         return content
 
+    @property
+    def summary(self) -> str | None:
+        return self.ap_object.get("summary")
+
     @property
     def permalink_id(self) -> str:
         return (
diff --git a/app/boxes.py b/app/boxes.py
index 7f64723..a89e24d 100644
--- a/app/boxes.py
+++ b/app/boxes.py
@@ -231,6 +231,8 @@ def send_create(
     uploads: list[tuple[models.Upload, str]],
     in_reply_to: str | None,
     visibility: ap.VisibilityEnum,
+    content_warning: str | None = None,
+    is_sensitive: bool = False,
 ) -> str:
     note_id = allocate_outbox_id()
     published = now().replace(microsecond=0).isoformat().replace("+00:00", "Z")
@@ -285,9 +287,9 @@ def send_create(
         "conversation": context,
         "url": outbox_object_id(note_id),
         "tag": tags,
-        "summary": None,
+        "summary": content_warning,
         "inReplyTo": in_reply_to,
-        "sensitive": False,
+        "sensitive": is_sensitive,
         "attachment": attachments,
     }
     outbox_object = save_outbox_object(db, note_id, note, source=source)
@@ -550,10 +552,9 @@ def _handle_create_activity(
 
 def save_to_inbox(db: Session, raw_object: ap.RawObject) -> None:
     try:
-        actor = fetch_actor(db, raw_object["actor"])
+        actor = fetch_actor(db, ap.get_id(raw_object["actor"]))
     except httpx.HTTPStatusError:
         logger.exception("Failed to fetch actor")
-        # XXX: Delete 410 when we never seen the actor
         return
 
     ap_published_at = now()
@@ -561,6 +562,16 @@ def save_to_inbox(db: Session, raw_object: ap.RawObject) -> None:
         ap_published_at = isoparse(raw_object["published"])
 
     ra = RemoteObject(ap.unwrap_activity(raw_object), actor=actor)
+
+    if (
+        db.query(models.InboxObject)
+        .filter(models.InboxObject.ap_id == ra.ap_id)
+        .count()
+        > 0
+    ):
+        logger.info(f"Received duplicate {ra.ap_type} activity: {ra.ap_id}")
+        return
+
     relates_to_inbox_object: models.InboxObject | None = None
     relates_to_outbox_object: models.OutboxObject | None = None
     if ra.activity_object_ap_id:
diff --git a/app/templates/admin_inbox.html b/app/templates/admin_inbox.html
index 632b3f1..d808ca2 100644
--- a/app/templates/admin_inbox.html
+++ b/app/templates/admin_inbox.html
@@ -10,7 +10,11 @@
 {% elif inbox_object.ap_type in ["Article", "Note", "Video"] %}
 {{ utils.display_object(inbox_object) }}
 {% elif inbox_object.ap_type == "Follow" %}
-    {{ utils.display_object(inbox_object) }}
+    <div class="actor-action">
+        {{ inbox_object.actor.display_name }} followed you
+        <span>{{ inbox_object.ap_published_at | timeago }}</span>
+    </div>
+    {{ utils.display_actor(inbox_object.actor, actors_metadata) }}
 {% else %}
     Implement {{ inbox_object.ap_type }}
 {% endif %}
diff --git a/app/templates/admin_new.html b/app/templates/admin_new.html
index faa694f..0c3b49b 100644
--- a/app/templates/admin_new.html
+++ b/app/templates/admin_new.html
@@ -25,6 +25,12 @@
     {% endfor %}
 
     <textarea name="content" rows="10" cols="50" autofocus="autofocus" designMode="on" style="font-size:1.2em;width:95%;">{{ content }}</textarea>
+    <p>
+        <input type="text" name="content_warning" placeholder="content warning (will mark the post as sensitive)" style="width:300px;">
+    </p>
+    <p>
+        <input type="checkbox" name="is_sensitive" id="is_sensitive"> <label for="is_sensitive">Mark attachment(s) as sentive</label>
+    </p>
     <input type="hidden" name="in_reply_to" value="{{ request.query_params.in_reply_to }}">
     <p>
         <input name="files" type="file" multiple>
diff --git a/app/templates/utils.html b/app/templates/utils.html
index bd3cef6..61649c2 100644
--- a/app/templates/utils.html
+++ b/app/templates/utils.html
@@ -88,6 +88,17 @@
 </form> 
 {% endmacro %}
 
+{% macro show_more_button(permalink_id) %}
+<form action=""  method="GET">
+<input type="hidden" name="show_more" value="{{ permalink_id }}">
+{% for k, v in request.query_params.items() %}
+<input type="hidden" name="{{k}}" value="{{v}}">
+{% endfor %}
+<button type="submit">show more</button>
+</form> 
+{% endmacro %}
+
+
 {% macro admin_reply_button(ap_object_id) %}
 <form action="/admin/new"  method="GET">
 <input type="hidden" name="in_reply_to" value="{{ ap_object_id }}">
@@ -157,15 +168,43 @@
 
 {% endmacro %}
 
+{% macro display_attachments(object) %}
+  {% if object.attachments and object.sensitive and not request.query_params.show_sensitive == object.permalink_id %}
+  {{ sensitive_button(object.permalink_id )}}
+  {% endif %}
+
+  {% if object.attachments and (not object.sensitive or (object.sensitive and request.query_params["show_sensitive"] == object.permalink_id)) %}
+    {% for attachment in object.attachments %}
+    {% if attachment.type == "Image" or (attachment | has_media_type("image")) %}
+    <img src="{{ attachment.resized_url or attachment.proxied_url }}"{% if attachment.name %} alt="{{ attachment.name }}"{% endif %} class="attachment">
+    {% elif attachment.type == "Video" or (attachment | has_media_type("video")) %}
+    <video controls preload="metadata"  src="{{ attachment.url | media_proxy_url }}"{% if attachment.name %} title="{{ attachment.name }}"{% endif %} class="attachmeent"></video>
+    {% elif attachment.type == "Audio" or (attachment | has_media_type("audio")) %}
+    <audio controls preload="metadata"  src="{{ attachment.url | media_proxy_url }}"{% if attachment.name%} title="{{ attachment.name }}"{% endif %} style="width:480px;" class="attachment"></audio>
+    {% else %}
+    <a href="{{ attachment.url | media_proxy_url }}"{% if attachment.name %} title="{{ attachment.name }}"{% endif %} class="attachment">{{ attachment.url }}</a>
+    {% endif %}
+    {% endfor %}
+  {% endif %}
+{% endmacro %}
+
 {% macro display_object_expanded(object) %}
 
 <div class="activity-expanded h-entry">
 
 {{ display_actor(object.actor, {}) }}
 
-<div class="e-content">
-{{ object.content | clean_html(object) | safe }}
-</div>
+{% if object.summary %}
+<p class="p-summary">{{ object.summary | clean_html(object) | safe }}</p>
+{% endif %}
+{% if object.sensitive and object.summary and not request.query_params.show_more == object.permalink_id %}
+{{ show_more_button(object.permalink_id) }} 
+{% endif %}
+{% if not object.sensitive or (object.sensitive and object.summary and request.query_params.show_more == object.permalink_id) %}
+    <div class="e-content">
+    {{ object.content | clean_html(object) | safe }}
+    </div>
+{% endif %}
 
 <a href="{{ object.url }}" class="u-url u-uid"><time class="dt-published" datetime="{{ object.ap_published_at }}">{{ object.ap_published_at | format_date }}</time></a>
 {{ object.visibility.value }}
@@ -177,6 +216,7 @@
 {{ object.announces_count }} shares
 {% endif %}
 
+{{ display_attachments(object) }}
 
 </div>
 
@@ -194,32 +234,24 @@
             {{ object.visibility.value }}
             <a href="{{ object.url }}" class="u-url u-uid"><time class="dt-published" datetime="{{ object.ap_published_at }}">{{ object.ap_published_at | timeago }}</time></a>
         </span>
+        {% if object.summary %}
+        <p class="p-summary">{{ object.summary | clean_html(object) | safe }}</p>
+        {% endif %}
+        {% if object.sensitive and object.summary and not request.query_params.show_more == object.permalink_id %}
+        {{ show_more_button(object.permalink_id) }} 
+        {% endif %}
+        {% if not object.sensitive or (object.sensitive and object.summary and request.query_params.show_more == object.permalink_id) %}
         <div class="activity-main e-content">
             {{ object.content | clean_html(object) | safe }}
         </div>
+        {% endif %}
     </div>
   </div>
-  {% if object.attachments and object.sensitive and not request.query_params["show_sensitive"] == object.permalink_id %}
-  <div class="activity-attachment">
-  {{ sensitive_button(object.permalink_id )}}
-  </div>
-  {% endif %}
 
-  {% if object.attachments and (not object.sensitive or (object.sensitive and request.query_params["show_sensitive"] == object.permalink_id)) %}
   <div class="activity-attachment">
-    {% for attachment in object.attachments %}
-    {% if attachment.type == "Image" or (attachment | has_media_type("image")) %}
-    <img src="{{ attachment.resized_url or attachment.proxied_url }}"{% if attachment.name %} alt="{{ attachment.name }}"{% endif %} class="attachment">
-    {% elif attachment.type == "Video" or (attachment | has_media_type("video")) %}
-    <video controls preload="metadata"  src="{{ attachment.url | media_proxy_url }}"{% if attachment.name %} title="{{ attachment.name }}"{% endif %} class="attachmeent"></video>
-    {% elif attachment.type == "Audio" or (attachment | has_media_type("audio")) %}
-    <audio controls preload="metadata"  src="{{ attachment.url | media_proxy_url }}"{% if attachment.name%} title="{{ attachment.name }}"{% endif %} style="width:480px;" class="attachment"></audio>
-    {% else %}
-    <a href="{{ attachment.url | media_proxy_url }}"{% if attachment.name %} title="{{ attachment.name }}"{% endif %} class="attachment">{{ attachment.url }}</a>
-    {% endif %}
-    {% endfor %}
+      {{ display_attachments(object) }}
   </div>
-  {% endif %}
+
   <div class="activity-bar">
     {% if object.is_from_outbox %}
     <div class="bar-item">
@@ -285,15 +317,5 @@
     
   </div>
 </div>
-{% elif object.ap_type == "Follow" %}
-
-    {% if object.is_from_inbox %}
-    <div class="actor-action">
-        {{ object.actor.display_name }} followed you
-        <span>{{ object.ap_published_at | timeago }}</span>
-    </div>
-    {{ display_actor(object.actor, {}) }}
-    {% endif %}
-
 {% endif %}
 {% endmacro %}