Fraud costs insurers millions every year, so detecting it is big business. I investigated “voice stress analysis” software, which is supposed to monitor micro-tremors in your voice to suss out when you’re lying. Some insurers swear by it, but others have found their teams of former social workers and police officers consistently outperform any computer. Meanwhile, scientists in the US have said VSA is about as effective as astrology, and there’s even an application for the iPhone. Why not try it for yourself?