The Economist (UK, center-left economics and news magazine) has a short article in the May 8th, 2008 edition on Voice Risk Analysis, which is another name for Voice Stress Analysis or Micro-Stress Analysis. You might recall from my previous posts (here and here) on this topic that I believe voice stress analysis to be a workable interrogation tool, when correctly administered, but then, so again can the copy machine in the hallway - it all depends on whether the subject is, or can be made to be, concerned about it. It is not, however, a lie detector. This author of the Economist's article seems to have come to a similar conclusion.
An interesting point in the article is that, at least in one real-world deployment of a commercial system, the biggest benefit was gained from simply telling the claimants that such a system would be used on them - which caused many to drop their claims prior to being "analyzed" by the system.