Greek bond yields keep crawling higher

Greek 10 year bond yields are creeping higher again.  I don't know if 'creeping' is the best word considering their volatility over the last year but you be the judge.   The 10 year closed at 10.91% today.
You can see the spike to 12+% and then rapid decline in May when the 750+ billion Euro bailout package was announced.
Since then rates have started climbing again.  I wonder what will happen when rates climb above their pre-bailout levels?