This is 99% invisible. I'm Roman Mars.

My fellow Americans Memorial Day is a day of ceremonies and speeches.

Throughout America today we honor the dead of our wars.

Whatever you think about Ronald Reagan, they called him the great communicator for a reason.

The unknown soldier who has returned to us today and whom we laid arrest is symbolic of

all our missing sons. This is him in 1984 during a military funeral at the

Tomb of the Unknown Soldier at Arlington National Cemetery.

On that memorial day, Reagan was eulogizing the remains of an unidentified service member

from the Vietnam War.

The remains would be entombed alongside three other unknown service members

from World War I and two and the Korean War.

It was a big event.

That's our own Joe Rosenberg. A horse-drawn carriage brought the

casket to the tomb past 250,000 onlookers, including hundreds of veterans who

emerged out of the crowd to walk behind the remains on their way to Arlington.

The most powerful part, though, is when Reagan talks about who this unknown soldier might have been.

Did he play on some street in a great American city, or did he work side his father on a farm out in America's heartland?

Did he marry?

Did he have children?

Did he look expectantly to return to a bride? We'll never know the answers

to these questions about his life. As Reagan spoke, etched on the side of the tomb itself were the words, known but to God.

It's all really moving, even knowing what we know now, which is that, although the person

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