Richard Haass says disputes should be resolved by dialogue
17 July 2013 Last updated at 18:51 BST
The man who will chair all-party talks later this year says politics is the only way of resolving parades disputes.
Dr Richard Haass, who is in Northern Ireland on a fact-finding trip, met party leaders ahead of intensive talks in the autumn.
He said that recent violence in Belfast was a reminder of the challenges that remain in the region.
Mark Devenport reports.