If you want to broker a peaceful outcome between the MSI and the Iconoclasts you have to speak to both leaders and then replace Graham with Zora. The thing is you have to have gained Zora's trust beforehand by completing optional objectives for her, otherwise you're screwed. You'll probably only find out you lost Zora's trust hours after the fact, which means all the groundwork like getting her file is completely wasted.
You can argue this is realistic and all but it runs counter to the design of the game; which is that all potential quests are signposted, you know when you've botched a quest, and that you overcome most obstacles with a well=placed skill-check. None of that comes to play here, which means a desired ending of the game is impossible unless you're clairvoyant or lucky.
Also Zora is supposed to give the Sucker Bait quest, but she's not talking.