Tony Knox writes. A suspected terrorist attack has wreaked havoc on the planet of Hermes, destroying a major dam. Trouble started yesterday, when a large explosion occurred within the dam's infrastructure, greatly weakening its integrity. Staff were quickly evacuated, and a few minutes later the whole structure collapsed. A large-scale clean-up operation is in progress, and traders are being asked to assist by shipping water off planet: especially low prices are being posted as an incentive.