Nations sign cluster bomb treaty:
Cluster bombs contain hundreds of "bomblets" that can cover a large area. The first of more than 100 countries have begun signing a treaty to ban current designs of cluster bombs, at a conference in Oslo, Norway.
Campaigners are hailing the treaty as a major breakthrough.
But some of the biggest stockpilers, including the US, Russia and China, are not among the signatories. First developed during World War II, cluster bombs contain a number of smaller bomblets designed to cover a large area and deter an advancing army.
But campaigners, including some in the military, have long argued they are outmoded and immoral because of the dangers posed to civilians from bombs that do not explode and litter the ground like landmines.
After reading about these treaties, ponder and evaluate how they can improve food shortages, and water access for the world's poorest. Analyze the ties between bomb agreements and resources.