[It's me]

http://www.euthanasia.com/prince.html

The 52-year-old academic is widely considered the father of the international animal rights movement yet has argued parents should have the right to euthanize newborn children who have severe handicaps. In his books, Singer has said that children less than one month old have no human consciousness and do not have the same rights as others. "Killing a defective infant is not morally equivalent to killing a person," he wrote in one book. "Sometimes it is not wrong at all."

[B Knotts]

The 52-year-old academic is widely considered the father of the international animal rights movement yet has argued parents should have the right to euthanize newborn children who have severe handicaps.

I would replace "yet" with "therefore."