Amid continuing tensions in the Central African Republic, rival Christian and Muslim militias in one part of the capital Bangui have declared a truce and shaken hands in public.
Negotiations should start in earnest as soon as possible, probably in Geneva, with a view to agreeing on a ceasefire, a transitional government and an internationally overseen election.
That's significant because their nations have been rivals since fighting stopped in the Korean War in 1953 and it wasn't until the year 2000 that their leaders even met face to face for the first time.
Brown was furious that the crowd outside had refused to honor his white flag of truce earlier in the day. He told Sinn that his men could have killed unarmed men and women, but did not do so.