Are you dying to know tomorrow's mood today?

According to NBC News, we are in the early stages of mood forecasting technology that could help stop bad moods even before they strike.

(No, this is a different story than the one about using surplus North Korean missiles to take out your lowlife cousin's Winnebago before he can embark on a month-long visit, although that too could stop bad moods before they strike.)

NBC says wearable devices wit...