The first human genome was sequenced in 2001 at a cost of $3 billion. Today, human genome sequencing costs less than $1000, and in a few years the price will drop below $100. Thus, personal genome sequencing will soon be widely adopted as it enables better diagnosis, disease prevention, and personalized therapies. Furthermore, if genomic data is shared with researchers, the causes of many diseases will be identified and new drugs developed. These opportunities are creating a genomic data market worth billions of dollars.