Doubts about “Personal Genomics”

I chose Family Tree DNA for my Velten y-DNA project because they have the largest database of results and host over 6000 surname projects, and they specialize in genealogy and nothing else. But it was hard to resist the 23andme year-end $99 offer. The 23andme tests include an Ancestral portion, with samplings from both y-DNA and mt-DNA (and I think autosomal DNA), and a Health portion that will supposedly screen me for risks of disease and for traits like baldness. In fact, the marketing hype on the 23andme web site heavily pushes the health aspects of their testing and has caused increasing scrutiny from the FDA and Congress.