Niger's former Prime Minister, Hama Amadou, has urged the country's political class to exhibit more responsibility in a bid to avoid some "useless rifts" about the debate on President Mamadou Tandja's bid to change the constitution through a referendum to have a third five-year term. “It is important that our political class shows a keen sense of responsibility in a bid to avoid in our dear country some useless rifts, by respecting constitutional legality,” he said.