Today's complex challenges cross borders and surpass the capacity of any single country or institution to cope. That was the message from the UN Secretary General to member states when he presented his new 'Agenda for Humanity' ahead of the first ever UN World Humanitarian Summit in Istanbul, Turkey in May this year. Ban Ki Moon, while launching his 'One Humanity: Shared Responsibility' report, urged heads of state and government to attend the summit, ready to commit solutions as the world grapples with the largest humanitarian crisis in a generation. Sherwin Bryce-Pease reports.