President Donald Trump has long been a critic of childhood vaccines -- but recently he changed course, urging parents to vaccinate their children.

As the nation continues to confront an epidemic of suicide, we explore the promising work of Dr. Jerry Motto, who in the 1960s, pioneered a simple, yet surprisingly successful method of treatment that is being implemented today.

It started with one request. A friend's sister was pregnant and suicidal. Before long a clandestine group called Jane was created to help women in Chicago with illegal abortions.

With every new advance in prenatal genetic screening, the ability to prevent suffering has also sparked difficult questions about what should count as “a disease” versus “a difference,” and whether we’re in danger of wiping out certain segments of the population. This story was produced in collaboration with PBS, American Experience.