Editor's Note: Two weeks after Scott Pelley's report aired, "60 Minutes" viewers sent in or promised more than $1 million to help homeless families in central Florida. Watch Pelley's full update by clicking here.

More than 16 million children are now living in poverty and, for many of them, a proper home is elusive. Some cash-strapped families stay with relatives; others move into motels or homeless shelters. But, as Scott Pelley reports, sometimes those options run out, leaving an even more desperate choice: living in their cars. 60 Minutes returns to Florida, home to one third of America's homeless families living without shelter, to find out what life is like for the epidemic's youngest survivors.

To learn more about the organization "Families In Transition" - the social services organization featured in this piece - click here. The organization works with homeless students in the Seminole County schools.

The following is a script of "Hard Times Generation" which aired on Nov. 27, 2011. Scott Pelley is correspondent, Bob Anderson and Nicole Young, producers.

Never has unemployment been so high for so long. And as a result, more than 16 million kids are living in poverty - the most since 1962. It's worst where the construction industry collapsed. And one of those places is central Florida.

We went there eight months ago to meet families who'd become homeless for the first time in their lives. So many were living day-to-day that school buses changed their routes to pick up all the kids living in cheap motels. We called the story "Hard Times Generation."

Now, we've gone back to see how things have changed. It turns out some families are losing their grip on the motels and discovering the homeless shelters are full. Where do they go then? They keep up appearances by day and try to stay out of sight at night - holding on to one another in a hidden America - a place you wouldn't notice unless you ran into the people that we met in the moments before dawn.

Time, has carried us into uncharted territory. The great recession began December 2007. Almost 1,500 mornings ago.

If you were rushing to work this morning, in Seminole County, Florida, it's not likely you'd notice the truck or hear the children getting ready for school.

Arielle Metzger: In the clear bin, we have dirty laundry. In that one, there's tools that we might need.

Scott Pelley: All these bank bags are storage of this and that.

Arielle Metzger: Like shampoo....

Austin Metzger: And over here is food.

Arielle Metzger: Food.

Pelley: So, you're really not heating up food so much. You're eating out of cans?

Arielle Metzger: Yup.

This is the home of the Metzger family. Arielle,15. Her brother Austin, 13. Their mother died when they were very young. Their dad, Tom, is a carpenter. And, he's been looking for work ever since Florida's construction industry collapsed. When foreclosure took their house, he bought the truck on Craigslist with his last thousand dollars. Tom's a little camera shy - thought we ought to talk to the kids - and it didn't take long to see why.

Pelley: How long have you been living in this truck?

Arielle Metzger: About five months.

Pelley: What's that like?

Arielle Metzger: It's an adventure.

Austin Metzger: That's how we see it.

Pelley: When kids at school ask you where you live, what do you tell 'em?

Austin Metzger: When they see the truck they ask me if I live in it, and when I hesitate they kinda realize. And they say they won't tell anybody.

Arielle Metzger: Yeah it's not really that much an embarrassment. I mean, it's only life. You do what you need to do, right?