Zubair al-Muhajir, a senior foreign fighter with the Harakat al Shabaab al Mujahideen (HSM), defected to Somali authorities and is now in Mogadishu. The operative confessed to had traveled from London to join the Al-Qaeda affiliated terrorist group in 2006. Intelligence reports indicate that Al-Muhajir rose through Shabaab ranks and finally became a member of...