The idea is to allow users to edit their own stories for a short period of time, say 2 hours after they have initally published their stories. This would allow them to correct any mistakes and fix any formatting problems as frequently occurs.
The feature could be implemented by saving the session cookie against the story and storing these in a temporary list along with the timestamp. Anything over the set time period could be flushed from the list. The list would be visible to editors to allow additional features in the future such as extending the time and issuing passwords to stories to allow multiple individuals to edit a story