Why do you do what you do?

For many of us, the answer to this question is practical; we take on jobs that challenge us, give us opportunities to put our talents to good use and allow us to financially support ourselves and our families.

Sometimes we answer a special calling that directs us towards a particular career.

I recently asked the same question to Gavin Portnoy, vice president of strategic advancement & partnerships at the National Center for Missing and Exploited Children (NCMEC).