As part of our "Nation Engaged" project, we're asking what does it mean to be an American? For one answer, we meet a prolific political talk show caller known widely as "Carl from Nashville."

The military recruiting spectacle known as "Marine Week" continues in Nashville, Tenn. For the mothers of two fallen Marines, it's a time to come together, offer support and remember the sacrifices.

The mobile Wi-Fi hot spots let people get Internet service anywhere there's a cell connection. The library in Spring Hill, Tenn., is joining the likes of big-city libraries in New York and Chicago.