Last week's Belfast International Homecoming — which welcomed friends of Belfast from five continents — and the impending visit by US Special Economic Envoy Joseph Kennedy III are further evidence of the global interest in the peace process. The Homecoming was born out of the belief that the diaspora is Belfast’s super power.It was founded on the realisation that emigration could be the nation's greatest opportunity. The old adage, of course is true: The Irish did build America. But equally, America built Ireland. And most certainly, America and Irish America helped build the peace process we enjoy today.