As President Abd Rabbu Mansour Hadi announces a federalism plan, we ask if it is the best option for the country. Sami Zeidan discusses Joseph Kechichian, a senior writer at Gulf News, Abdul-Ghani al-Iryani, a political analyst and vice president of the Khobara Centre, Saeed Yafai, the chairman of the executive bureau of the consultancy Forum of Southerners in Sanaa.