Shipping Minister Shajahan Khan MP launched a mass signature campaign on Jatiya Press Club premises to press home six-point demand, including termination of Jamaat and Shibir men from public jobs jointly organised by Shramik Karmachari Peshajibi Muktijoddha Samannaya Parishad (SKPMSP), International War Crimes Mass Trial Movement (IWCMTM) and Muktijoddhar Santan O Projonmo Samanya Parishad yesterday .