There was a recognition by all who participated in these reviews that the challenges to our privacy do not come from government alone. Corporations of all shapes and sizes track what you buy, store and analyze our data, and use it for commercial purposes; that's how those targeted ads pop up on your computer and your smartphone periodically. But all of us understand that the standards for government surveillance must be higher. Given the unique power of the state, it is not enough for leaders to say: Trust us, we won't abuse the data we collect. For history has too many examples when that trust has been breached. Our system of government is built on the premise that our liberty cannot depend on the good intentions of those in power; it depends on the law to constrain those in power.