![Stories of the Week | PBS NewsHour Podcast | PBS show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/011/424/small/stories-of-the-week-newshour-with-jim-lehrer-podcast-pbs.jpg)
Summary: Scientists have not found one master alcoholism gene in DNA but rather several that may affect a person's susceptibility. Science correspondent Miles O'Brien goes under the influence to examine the genetic science behind alcoholism and other addictions, and how the answers point to great challenges in curing substance abuse.