Problems of our times

Responding to Michael Bloomberg’s call, First Minister Ian Paisley said today:

“Outsiders pulling down walls will accomplish nothing but when those on both sides of the wall mutually come to agreement and say we are taking down these walls, then we will have won a great victory and I look forward to that victory being sealed over and over again in these areas where there has been great trouble in the past days.”

How can such local agreements be achieved?