Sperm donor dad bonds with the kids he never knew he had

Family ties are more than a bit ambiguous for children conceived with the help of a sperm donor

From: http://www.cbsnews.com/videos/sperm-donor-dad-bonds-with-the-kids-he-never-knew-he-had/

​One sperm donor's extended family

As a young grad student, he wanted to help people who wanted kids; years later he's meeting the children he calls "really quite remarkable"

From: http://www.cbsnews.com/news/one-sperm-donors-extended-family/