Care to back that statement up with any facts, sources or references? Please don't perpetuate a pseudo-science.

In Valery Plame's book Fair Game she talks about how the machines that they use during polygraphs are more accurate. The question of whether or not humanity has access to that technology can be answered here:

https://www.schneier.com/blog/archives/2010/08/more_brain_sc...

http://www.economist.com/node/21534748

http://www.economist.com/node/21534780