US citizen Barbara Harris doesn't think drug addicts should have children. In fact, she wishes there was a law banning it.
Barbara has set up a controversial project that pays people hooked on drugs or alcohol to have long term contraception fitted or to get sterilised.
Project Prevention, as it is known, is funded by private donors and has so far made payments of $300 each to around 3000 women in America.
And she now has plans to set up a similar project in the UK.
Barbara herself has ten children, including four fostered from a drug addicted mother.
It was this fostering experience that convinced her that drug addicts shouldn't be parents.
However, critics say she only focuses on low income families and reinforces stereotypes about the kinds of women who use drugs.
Barbara spoke to Outlook's Aasmah Mir and described how her personal experience of motherhood influenced her thinking.