Listing 2 - Polling the Portal catalog for the latest headline on the front page

<tal:headline tal:define="objects python:container.portal_catalog(
       portal_type='Headline',
       review_state='published');
sort_on python:(('EffectiveDate', 'cmp', 'desc'),
   ('ModificationDate', 'cmp', 'desc'));
                   	sorted_objects python:sequence.sort(objects, sort_on)[:1]"> 
          <span tal:omit-tag="" tal:repeat="result sorted_objects">
             <span tal:omit-tag="" tal:define="item result/getObject">
                <p tal:content="python:item.title">Title</p>
                <p tal:replace="structure python:item.text">Body text</p>
             </span>
          </span>
</tal:headline>