BRIDGETOWN, Barbados - THIS IS UNDOUBTEDLY a most challenging period in global political and economic developments for some members of CARICOM. And a few leading Community partners seem to be wilting under mounting economic and social pressures, resulting in rather surprising political posturings. None more so than in the case of Jamaica. Last week, for instance, that country’s opposition leader Andrew Holness felt compelled to publicly call for his country to suspend its membership of CARICOM until growing trade-related disputes could be satisfactorily resolved, more urgently with Trinidad and Tobago.