There have been several posts about this discovery and arrest at the NSA. Another insider has stolen classified information. Many people continue to ask the question – How can this happen at the NSA? What about all of their security? What about all of the efforts required to obtain and maintain a security clearance? The answer to these questions is simple and found in the article. A motivated insider with proper access is extremely difficult to defend against.
The questions I would ask everyone within earshot – Is your security and background checking process as strong or stronger than the NSA? If not, then why are you not incredibly concerned about insider threats?