SSNs are used as an example. The real problem, alluded to in the article, is that the government attempts to classify personally sensitive, business sensitive, and military critical information (to name a few) under the same system. Unfortunately there is plenty of overlap and specific cases within these categories, resulting in a ridiculous number of labels - thereby resulting in mass confusion. However, this situation is often the case when one attempts to take a single system and apply it to such a wide audience. The US fed is going through a similar situation in IT and HR Management; at some point the benefits of consolidation result in less efficiency...