The 33 Chilean miners, who know they will be trapped below ground for months, display their living conditions to the world...

... and sing the national anthem to express their appreciation that people have the courage to go to all the trouble of rescuing them.

Think of all the miners in the past who have been trapped and were not rescued. Imagine knowing even one human being was buried alive and not making the effort — whatever the expense — to get them out.

ADDED:

"This is our casino," the miner says at one point, showing a table where the miners, he says, had made some makeshift dominoes.

It is the best thing to do, under the circumstances. In the above-ground world casinos are deliberately constructed without windows.