Iraqi Rebels and Government mull talking to each other!

In what i can't seem to discern as a good or a bad move, The Iraqi Government is reporting that the two biggest Iraqi "Ressistance" groups , the Islamic Army of Iraq and the Mujahedeen Army, are now open for talks with the government. They are apparently thinking of following Muqty's example and coming out to the political arena. Why do i have the feeling that this would be a really bad move on the Iraqi government part? I mean, on one hand, negotiations with them might lead to a cease fire and an end to the blodshed, but on the other hand such a peace will definitely come with the price of giving those groups some sort of power in exchange. And lest we forget, those are the same people that terrorized the Sunnis from participating in the January elections, and thus having no represntation in the Parliamant. It would be rewarding those who killed and terrorized Iraqis, and giving them power that they didn't get through the proper channels, i.e. elections. Not to mention, they will always wield the threat of force against the government everytime they disagree, which is why negotiating with terrorists is always a bad idea. Is lowering the amount of attacks in Iraq, really worth that risk? I wonder.