The tri-letters seek more and more access to personal data, yet their own transparency worsens and their operations are increasingly classified or confidential, even to members of Congress. We have more reason to be concerned about the dark areas of government than Mr. Comey's "dark room" of civil privacy. Defending civil liberties is an uphill battle because their importance is not as immediately apparent as the security predicament of the day. On the other hand, once the government gains a new mandate and new authority it's rarely willing to relinquish this power once the cause for the mandate has been resolved or the solution demonstrated unworkable. So we should be cautious about granting broad authority to solve today's problems; we'll have to live with the consequences tomorrow and days to come even if it's realized the cure was worse than the disease.