Now thats something innovative DARPA could do: I don't want biometrics, but perhaps someone else might like it, as they don't care much for computers, and would have used a 12345qwert like password.
Come on, most of these authentication methods are inferior, I just don't have the abilities I have with passwords: evil people have to beat me with a stick until they know my password instead of just having to cut off my finger, I can change it whenever I want, a password doesn't identify me (I can stay anon), I can give it to someone else, and when I am eating (drinking, got my finger cut off because someone wanted to break into another computer of mine) something I can enter the password with my other hand, without changing the way my hand tremors.