. >> one of them is 20 year old sarah malley. >> what makes you nervous? >> what do you say when you're meeting your biological family for the first time. i don't know. >> todd whitehurst is their biological father. the one they're about to meet. he's 49-year-old computer in 1998 then a stanford grad student he noticed something in the school paper. >> a big ad saying, young men 18-30 needed for sperm donation. >> did you have any qualmshurst has two children of his own from previous marriage never expected to meet any of his donor children. sperm banks follow a protocol. all donor dads sign an agreement to remain anonymous. the families on the receiving background information about their donor. his age, ethnicity, height, birth place, education, so on. clinic give them ha unique i.d. number and that has become the gateway to improbable meetings like the one white surities about to have. >> it never would have happened if not for one woman. >> it's innate human desire to want to know where we come from. >> wendy camer is the mother of donor son. she saw ho

. >> one of them is 20 year old sarah malley. >> what makes you nervous? >> what do you say when you're meeting your biololocal family i don't know. >> todd whitehurst is their biological father. the one they're about to meet. he's 49-yearmold computer engineer who works for google. in 1998 then a stanford grad student he noticed something in the school paper. >> a big ad saying, young men 18-30 needed for sperm donation. >> did you have any qualms about it? >> i guess my feeling, the folks who end up going to a sperm bank really want children quite badly. why wouldn't you want that. why wouldn't you want to help those people out? >> whitehurst has two children of his own from previous marriage never expected to meet any of his donor children. sperm banks follow a protocol. to remain anonymous. the families on the receiving end are only given basic background information about their donor. his age, ethnicity, height, birth place, education, so on. clinic give them ha unique i.d. number and that has become the gateway to improbable meetings like the one whi

. >> sarah malley a student had learned six months earlier that she and her twin sister jenna were donor babies. she contacted whitehurst through the donor sibling registry and he helped arrange this family gathering. >> what was it like? >> overwhelming. >> do you feel father's pride? >> oh, absolutely. when i hear her talking about a hug i want to give her a hug again. >> the reproductive industry does little to make it easy for donor dads and their children to meet. >> nobody keeps track of the donors. nobody keeps track of the kids. there's no tracking whatsoever. >> wendy kramer says sperm banks ask mothers to report donor births but it is not required. and no organization links dint clip particulars track the total number of births from a single donor i.d. >> how many potential kids are out there from a single donor? >> nobody really knows. the largest group that we have on our website, we know of a group that somewhere around 200. >> 200 kids. >> right. i don't know about you, but if i knew that i was -- i had 200 half brothers and sisters i would feel like i was part of a it woul

3 front runner hilliary clinton- bernie sanders and martin o' malley will be facing off in hopes of winning over voters. 3 my co-anchor sarah danik is live at the gaillard (gayle- yerd) center with more.and sarah - what's it like in charleston tonight? 3 derek - we're live right now in the media filing center - where news outlets from around the country and world are gathered to watch the debate and file reports.and this is a big event, as it's the last time we'll see all three democrats together before the iowa caucuses. 3 3 )tonight - hillary clinton, bernie sanders and martin o'malley are all on the stage here in charleston.this is a look at the candidates last night - as they spoke at the first in the south dinner.all three are debating -- however willie wilson, the 4th democrat who is running, is not polling high enough to make the cut. cut.what makes this debate so important, is that bernie sanders is closing the gap in polls - most notably in iowa, new hampshire polls.today - supporters for both leading candidates made sure their voices were heard about why democrats. 3 3 3 15:11:50 he's for the people, he's for issu