The latter is an illustration and a couple of links.
Hanna's article is about the situation in Palestine. A few excerpts:
Palestinians have three main water sources, namely the river Jordan, the mountain aquifer (which is water underneath the West Bank) and the coastal aquifer (water underneath Gaza and the coast). These water sources are shared with Lebanon, Syria, Jordan and Israel.
When Israel occupied the West Bank, Jerusalem and the Gaza strip in 1967 the common water sources were controlled by the Israeli government.
Israel is building a barrier through Palestinian territory. But even more strikingly: this wall-fence-roadblock-thing is annexing the most fertile lands and the best water wells, which means they are now out of Palestinian reach.
Pleas do go to the TH!NK3 site to read the whole thing... or better yet, just subscribe to the RSS right away :-)