There are those who, in good faith, believe that we should leave the balance between civil liberty and security entirely to our elected leaders, and to those they place in positions of executive responsibility. Again, we do not agree. The American system, as we understand it, is premised on the idea — championed by such men as Thomas Jefferson and James Madison — that government run amok poses the greatest potential threat to the people’s liberty, and that an informed citizenry is the necessary check on this threat. The sort of work ProPublica does — watchdog journalism — is a key element in helping the public play this role.