The siege affects civilians only, not Hamas, the rulers. Rulers always sit fat and happy during sieges. The arms flow nonetheless because actually stopping that would require re-invasion. Modern siege is an inconvenience to the besiegers, the goal is to demoralize the civilian population. It is working, too. But that civilian population is not going to rise up and pit their dinner knives against modern AK-47s. Why do you think Bush and Sharon engineered Hamas into power in the first place. It was Bush's only real success. And Bibi doesn't negotiate when even Abbas comes to the table. Imagine if Haniya tried.
Former ruling party in Yemen says it accepts UN-brokered peace plan (Reuters)
from the article: IDF strikes Gaza five times following recent mortar barrage