london caribbean island barbuda scene total carnage passage hurricane irma tiny two-island nation seek assistance international community rebuild prime minister say thursday gaston browne prime minister antigua barbuda tell bbc half barbuda population 1,800 homeless nine 10 build suffer level devastation many total destruction fly barbuda see total carnage easily one emotionally painful experience browne say interview bbc radio four approximately 50 percent residents barbuda literally homeless time bunk together try get ... relief supply first thing tomorrow morning say add would take months years restore level normalcy island hurricane irma wreak 'total carnage barbuda prime minister