Thanks to Edward Snowden, I now know that the U.S. National Security Agency is spying on me. It uses Google, Facebook, Verizon and other Internet and communications companies to collect vast amounts of digital information, no doubt including data about my emails, cell phone calls, and credit card usage. I am not a United States citizen, so it’s all perfectly legal. And even if I were a U.S. citizen, it is possible that a lot of information about me would have been swept up anyway, though it may not have been the direct target of the surveillance operation.

Should I be outraged at this intrusion on my privacy? Has the world of George Orwell’s “1984” finally arrived, three decades late? Is Big Brother watching me?

I don’t feel outraged. Based on what I have learned so far, I don’t really care. No one is likely to be reading my emails or listening in on my Skype calls. The volume of digital information that the NSA gathers would make that an impossible task.

Instead, computer programs mine the data for patterns of suspicious activity that intelligence analysts hope will lead them to terrorists. The process is not all that different from the data collection and analysis that many corporations use to target their ads at us more effectively, or that give us the online search results that we are most likely to want.

The question is not what information a government or business gathers, but what they do with it. I would be outraged if there were evidence that – for example – the U.S. government was using the private information that it scoops up to blackmail foreign politicians into serving U.S. interests, or if such information were leaked to newspapers in an effort to smear critics of U.S. policies. That would be a real scandal.

If, however, nothing of that sort has happened, and if there are effective safeguards in place to ensure that it does not happen, then the remaining question is whether this huge data-gathering effort really does protect us against terrorism, and whether we are getting value for money from it. The NSA claims that communications surveillance has prevented more than 50 terrorist attacks since 2001. I don’t know how to evaluate that claim, or whether we could have prevented those attacks in other ways.

The value-for-money question is even more difficult to assess. In 2010, The Washington Post produced a major report on “Top Secret America.” After a two-year investigation involving more than a dozen journalists, the newspaper concluded that no one knows how much U.S. intelligence operations cost – or even how many people the American intelligence agencies employ.

At the time, the Post reported that 854,000 people held “top secret” security clearances. Now that figure has reportedly risen to 1.4 million. (The sheer number of people does indeed make one wonder whether misuse of personal data for blackmail or other private purposes is inevitable.)

Whatever we think of the NSA surveillance program itself, the U.S. government has clearly overreacted to the release of information about it. It revoked Snowden’s passport, and wrote to governments asking them to reject any asylum request that he might make. Most extraordinary of all, it seems that the U.S. was behind the apparent refusal of France, Spain, Italy and Portugal to permit Bolivian President Evo Morales’s airplane to enter their airspace on his way home from a visit to Moscow, on the grounds that Snowden might have been aboard. Morales had to land in Vienna, and Latin American leaders were furious at what they took to be an insult to their dignity.

Supporters of democracy ought to think long and hard before prosecuting people like Julian Assange, Bradley Manning and Snowden. If we think that democracy is a good thing, then we must believe that the public should know as much as possible about what the government it elects is doing. Snowden has said that he made the disclosures because “the public needs to decide whether these programs and policies are right or wrong.”

He’s right about that. How can a democracy determine whether there should be government surveillance of the kind that the NSA is conducting if the public has no idea that such programs even exist? Indeed, Snowden’s leaks also revealed that National Intelligence Director James Clapper misled the U.S. Congress about the NSA’s surveillance practices in his testimony at a hearing held in March by the Senate Intelligence Committee.

Clapper was asked by Senator Ron Wyden whether the NSA gathered “any type of data at all on millions or hundreds of millions of Americans.” Clapper answered: “No.” But when pressed by Wyden, he changed his answer and said, “Not wittingly. There are cases where they could inadvertently perhaps collect, but not wittingly.”

When The Washington Post, which, along with The Guardian, published the information that Snowden provided, it asked Americans whether they supported or opposed the NSA’s intelligence-gathering program. Some 58 percent of those surveyed supported it. Yet the same poll found that only 43 percent supported prosecuting Snowden for disclosing the program, while 48 percent were opposed.

The poll also indicated 65 percent support for public hearings by the U.S. Congress on the NSA surveillance program. If that happens, we will all be much better informed because of Snowden’s disclosures.

Peter Singer