DNA: Some interesting questions

A favorite DNA blog is Eye on DNA, authored by Dr. Hsien-Hsien Lei, who provides interesting posts and interviews.

A recent posting focused on Dr. Blaine Bettinger.
Hsien's interview asked questions on understanding genetic genealogy, what tests he recommends to people new to genetic genealogy, should they have tried traditional genealogy first, should people take every test available, what tests he has taken and if he's had any surprises.

Bettinger also writes The Genetic Genealogist blog, and has a posting there on unexpected results, which quotes Bennett Greenspan of Family Tree DNA.