Re identify patient information

Latanya Sweeny, in his paper Weaving technology and policy together to maintain confidentiality. Journal of Law, Medicine and Ethics. 1997, 25:98-110, stated that a patient private information can be re-identified even explicit personal information is removded. You can see the original article by clicking the title of the blog.

My first reaction is "So what!" Myself always lean toward more productivity using medical data. If you put a huge security barriers betwen the care provider and patients' data, it will eventually do more harm to patient than compromsing patient information. I am asking your opinion on medical security and productivity.