GLENN: This was the sound in Mexico City, yesterday. As the ground began to shake violently, explosions and buildings falling down. The capitol experienced a 7.1 magnitude earthquake. It was prolonged, and it was violent. As of this morning, rescuers are still working to dig people out from under the rubble.

Here's what we know today: Two hundred forty people have been reported dead, but there will be many more. The number is expected to rise. More than 40 buildings have already collapsed, including at least two schools.

In a strange turn of events, what made yesterday so weird and jarring was that many Mexicans had attended memorial services earlier that morning. They had been to church because they were marking the 30-second anniversary of the 1985 earthquake that killed 10,000.

This earthquake also came less than two weeks after an 8.1 magnitude that killed 91 people and destroyed thousands of homes. Mexico City is one of the greatest cities, I believe, in the western hemisphere. It's a clean New York. It is a great cultural city.

And in the rubble, we saw something else: We saw the strength of the human spirit. We saw neighbor helping neighbor. A community coming together. And in the coming days, we'll see what makes America great yet again. We will see Americans reaching deep and helping their neighbor.

Because no matter what we say, there is never a wall around our hearts. Yesterday, what we saw in Mexico was a nation moved to action, when everybody focused on what really mattered most: each other.

For two countries that are throwing the war of words back and forth with our politicians, it was interesting to watch yesterday and see, in the end, we're not all that different.