The hidden science of mail-in voting

With a presidential election rapidly approaching and no indication that the COVID-19 pandemic is going anywhere, a record number of people will likely vote by mail. But what happens when we send that ballot off in the mail? And how do we make sure it gets counted? With the help of a former FBI agent-turned-forensic document examiner and a ballot tracking software insider, host Dr. Alok Patel follows the journey of a mail-in ballot from your kitchen counter to the election office.Learn more about NOVA and subscribe to our YouTube channel.