Singing his way across the country for others, Jack Knight has stopped at hundreds of police stations and firehouses to...

I know it’s difficult to envision — Americans of all ages, in and out of uniform, from every walk of life, standing side by side in service to their country, their communities, and one another. I understand. You may not believe it unless you see it with your own eyes. Let me help you picture it and imagine what it will be like, not only to see it but also to be a part of it in your own community.