These two scientists say DNA can be altered

[Reporter]

And so they won the Nobel Prize for their researches on that.

https://www.bbc.com/news/science-environment-54432589

[Reporter]

Humans could play God.

"...But without regulation, some fear Crispr could equally be used to create "designer babies", opening up an ethical minefield. If genome-edited children grow up and have children, any alterations to their genomes could be passed down through the generations - introducing lasting changes to the human population.

Last year, Chinese scientist He Jiankui was jailed for three years after creating the world's first gene-edited human babies. He was convicted of violating a government ban by carrying out his own experiments on human embryos, to try to give them protection against HIV..."