Lie detection as an alternative (Score 1)

The idea of pass-thoughts is nifty and all, but seems overly complicated and prone to error. This piece did remind me of a previous article in Wired (http://www.wired.com/wired/archive/14.01/lying.ht ml?pg=5) that covers work being done on a a portable fMRI using near-infrared light. Put the two together, and rather than a password, the authentication scheme can merely be a truthful response to "Are you really so-and-so?"