MSNBC reports on user experience of the new field of genetic genealogy:

"I clutched the phone and started the trans-Atlantic countdown: Thanks to a mail-order DNA test, I was about to find out whether my Irish cousin was really my cousin. On the other end of the call was my cousin's fiancée, who read off 10 numbers while I compared them. The first number? Check. The second? Check. So far, so good..."

DNA tackles a family’s mysteries