After people have expressed their views, ask if anyone wants to shift or change where they are standing. The facilitator should ask the participants what they observed in this process. How you feel about an issue, and cannot prove it. Divide into two groups. The challenge is to recognize it and deal with it in a constructive manner.
Values are the most prominent factor in addressing controversy.
Logic and facts often take a back seat to emotion. Don't assume others share your values or beliefs. The values clothesline underscores this fact. Controversy must be addressed before consensus and constructive action can be taken.