Interesting to read news of Israel approving $100 million of building supplies for Gaza, welcomed as "a significant step" by Robert Serry, the UN Special Coordinator for the Middle East Peace Process. Media coverage of this news acts as a reminder that the Gaza situation is, to put it mildly, far from perfect, but this is still good news. Less cheering is news of the latest attacks on Israeli civilian targets from Gaza, which must be terrifying for the people who live in the areas hit. Israel's vulnerability (for all its great deterrent power) is also underlined by today's news about a massive civil defence drill. Anyone who fails to understand Israel's sense of vulnerability is failing to understand one of the key issues in the Israel/Palestine peace process.