Lie great number of lies, depending on how the political wind blows." The question of whether lies can reliably be detected through nonverbal means is a subject of some controversy. Polygraph "lie detector" machines measure the physiological stress a subject endures in a number of measures while he/she gives statements or answers questions. Spikes in stress are purported to indicate lying. The accuracy of this method is widely disputed, and in several well-known cases it was proven to have been deceived. Nonetheless, it remains in use in many areas, primarily as a method for eliciting confessions or employment screening. Polygraph results
The Lie (poem) since I needs must die, And give the world the lie. Say to the court, it glows And shines like rotten wood; Say to the church, it shows What's good, and doth no good: If church and court reply, Then give them both the lie. Tell potentates, they live Acting by others' action; Not loved unless they give, Not strong but by a faction. If potentates reply, Give potentates the lie. Tell men of high condition, That manage the estate, Their purpose is ambition, Their practice only hate: And if they once reply, Then give them all the lie. Tell