Iran’s new parliament speaker said Sunday any negotiations with Washington would be “futile” as he denounced the death of a black American that has led to violent protests across the US. Mohammad-Bagher Ghalibaf, a former commander of the Revolutionary Guards’ air force, was elected speaker on Thursday of a chamber dominated by ultra-conservatives following February elections. The newly formed parliament “considers negotiations with and appeasement of America, as the axis of global arrogance, to be futile and harmful,” he said in his first major speech to the chamber.