The U.S. surveillance state as outlined and explained by Edward Snowden is not worth the price. Its size, scope and intrusiveness, its ability to target and monitor American citizens, its essential unaccountability—all these things are extreme.

The purpose of the surveillance is enhanced security, a necessary goal to say the least. The price is a now formal and agreed-upon acceptance of the end of the last vestiges of Americans' sense of individual distance and privacy from the government. The price too is a knowledge, based on human experience and held by all but fools and children, that the gleanings of the surveillance state will eventually be used by the mischievous, the malicious and the ignorant in ways the creators of the system did not intend.

For all we know that's already happened. But of course we don't know: It's secret. Only the intelligence officials know, and they say everything's A-OK. The end of human confidence in a zone of individual privacy from the government, plus the very real presence of a system that can harm, harass or invade the everyday liberties of Americans. This is a recipe for democratic disaster.

If—again, if—what Mr. Snowden says is substantially true, the surveillance state will in time encourage an air of subtle oppression, and encourage too a sense of paranoia that may in time—not next week, but in time, as the years unfold—loosen and disrupt the ties the people of America feel to our country. "They spy on you here and will abuse the information they get from spying on you here. I don't like 'here.' "

Trust in government, historically, ebbs and flows, and currently, because of the Internal Revenue Service, the Justice Department, Benghazi, etc.—and the growing evidence that the executive agencies have been reduced to mere political tools—is at an ebb that may not be fully reversible anytime soon. It is a great irony, and history will marvel at it, that the president most committed to expanding the centrality, power, prerogatives and controls of the federal government is also the president who, through lack of care, arrogance, and an absence of any sense of prudential political boundaries, has done the most in our time to damage trust in government.