The more Hamas keeps firing into civilian areas, the greater the consequences. They can stop anytime they want but continue.... gluttons for punishment.
The worst part is their attack strategy is failing so badly. Yet they will not stop. The answer is because they want their own civilians killed to use as propaganda.that is Hamas real weapon.
I'm surprised that the Palestinian people are not stopping Hamas. Their loss is much more than the damage they are inflicting on Israel. The LTTE did the same thing of using civilians to cover their soldiers and they lost a large amount of support form the local population.