This underscores the target value of energy storage to terrorist attacks, which has two aspects:
The increased blast yield – the explosive energy – charge shaping aside – is the sum of the energy of the car bomb and the stored natural gas. This is another example of the problems inherent in centralizing energy storage.
Infrastructure disruption. Again, the more centralized the energy storage, the greater the disruption. This principle, of course, applies not only to energy distribution networks, but to water supplies, sewage systems, and communications networks.