CAIRO - The Muslim Brotherhood, Egypt's well-organised political group, said it would take part in a “national dialogue”, sponsored by the interim Government, snubbing calls for similar talks planned by secularists, known as the First Egypt Conference. The broad-based debate is designed as a dialogue between the loose political groups on the one hand and the ruling military and interim Government on the other. It is conducted by former prime minister, Abdel Aziz Hegazi, while another conference titled the First Egypt Conference was suggested by political activist Mamdouh Hamza to discuss the new Constitution. “I discussed this matter with the Guidance Office in a meeting held in Cairo [Wednesday]. We finally agreed to participate with Abdel Aziz Hegazi, who is commissioned to run the [national] dialogue," said Essam el-Arian, a spokesman for the group. The Brotherhood Friday holds its maiden public meeting in its new headquarters in Moqattam area on the outskirts of Cairo, in which they are set to declare the seats to contest in the parliamentary elections set for September.