Index: wp-admin/includes/class-wp-list-table.php
===================================================================
--- wp-admin/includes/class-wp-list-table.php	(revision 37144)
+++ wp-admin/includes/class-wp-list-table.php	(working copy)
@@ -686,6 +686,18 @@
 				$approved_comments ? __( 'No pending comments' ) : __( 'No comments' )
 			);
 		}
+		// If comments are closed, show a lock then
+		if ( ! comments_open( $post_id ) ) {
+			printf( '<span aria-hidden="true"><span class="dashicons dashicons-lock"></span></span><span class="screen-reader-text">%s</span>',
+				__( 'Comments are closed' )
+			);
+		}
+		/* Comments are allowed, show open lock
+		else {
+			printf( '<span aria-hidden="true"><span class="dashicons dashicons-unlock"></span></span><span class="screen-reader-text">%s</span>',
+				__( 'Comments are allowed' )
+			);
+		} */
 	}
 
 	/**
@@ -1153,7 +1165,7 @@
 	}
 
 	/**
-	 * Get a list of CSS classes for the WP_List_Table table tag.
+	 * Get a list of CSS classes for the list table table tag.
 	 *
 	 * @since 3.1.0
 	 * @access protected