It has been a full year since federal agents snooped through the private emails of my husband and me, setting in motion a series of events that ultimately led to the resignations of Central Intelligence Agency Director David Petraeus and Gen. John Allen, the commander of coalition forces in Afghanistan. The anniversary is a somber reminder of the unintended consequences and harsh realities that can result from unrestrained government probing into Americans' personal communications.

More recent revelations of National Security...