I want the 'articles' to be view able to everyone(public), not just a specific role. For example, an announcement for an event, and once the event is over I want to article to disappear or be un-viewable. 

For example in the DNN core HTML module you can set a Start Date and End Date (Advanced Settings). For Live Articles it would be great to have this feature per article. After an end date the article could go into an unpublished status (draft?).