PHILIP BLENKINSOP BELGIAN lawmakers debated a prisoner exchange treaty with Tehran that an exiled Iranian group opposes and says will release the mastermind behind a plan to bomb one of its rallies. Justice Minister Vincent Van Quickenborne urged the foreign relations committee of Belgium's lower house to back an accord that intelligence services believed could avert an increased threat against Belgian interests. "People's lives are at stake," the minister said, adding one threat that had materialised was the detention of a Belgian man in Iran since February. Many lawmakers spoke about the possibility of an exchange to secure the release…