Sperm donation is big business.

It's a global market, patients travel, but sperm is also shipped abroad.

A new investigation reveals that nearly 200 children were born from one donor who had a cancer-causing genetic mutation.

This is really not a mutation you want your child to have.

Today on the world, the investigation into donor 7069.

Also, mass deportations in the U.S. have meant young kids are going to immigration court by themselves.

Frankly, I don't believe that they understand the gravity of the situation because,

I mean, they're just learning about what a judge is. How the legal aid system is trying to help,

plus fonts. It's old. I'm picturing, you know, Gutenberg, like printing his Bibles.

Typeface gets political. I'm Carolyn Beeler. And I'm Marco Werman. That's all ahead today on the world.

This is the world. I'm Carolyn Beeler.

And I'm Marco Wormon. We're glad you're here with us today. A story that's riveting Europe right now is about one man who donated sperm in Denmark that ended up being sold in at least 14 countries and was used to conceive

nearly 200 babies, maybe even more.

Donor 7069, it turns out, carried a genetic mutation that increases the risk of cancer.

Some of the children conceived with the man's sperm have already died.

Others are expected to develop cancer. That's according to a new investigation

by 14 European Public Service broadcasters. Naomi Conrad worked on this story with our partners

at Deutsche Bella. She says the genetic mutation has serious implications. It basically messes with a

gene that's called TP53 that suppresses cancerous growth.

So if this gene doesn't work properly, if there's mutation, it basically means that from a very

early age onwards, you can develop cancers. And children or young adults who have this mutation develop cancer at a very

early age, but it's a lifelong risk. So they develop two, three, four different kinds of

...