According to current versions of events, command center communications were intercepted and misinterpreted, leading families to believe their loved ones were still alive after all these hours in the mine -- only one was. Friends and families were put on a terrible rollercoaster, going from cautious hope, to elation, to devastation.
In retrospect, I see more encryption should have been used, to insulate people from the raw intelligence. You need a layer of interpretation and analysis in between. The doctor comes out and explains the situation. More details will be available later, to the most curious with a need to know.
Update: according to the CBS Evening News tonight, the rescue team did use code.