As Nick said, a lot of gait recorgnition stuff gets done in our department... it works scarily well. Main use that it's hopefully going into is airport security, so at least has a good use.
Facial recognition is no where near as good as people think, ear recognition however... thing is someone needs to offer up the ear for a still picture, which is where gait wins hands down. As to mobile phones and credit cards, thats been around for ages. I worked for Vodaphone 7/8 years ago, before they were really common, and remember the guy showing me how all this stuff in teh movies is a load of rubbish, that you couldn't do this (he did something) or this (did something else) and 20 secs later we had a street map on the screen with us, and his mobile. That was about 200m accurate then, on old mobile phone frequencies and transmitters. Credit cards have been going even longer than that, and they only inroduced shop loyalty cards to get teh people who used to pay cash
As to the defense side, just be glad that we still lead in it despite a lot of activists best efforts (sorry, that really winds me up) I'm much happier knowing that it's our guys (and has been influenced ever so slightly by me
) who are inventing the good defense stuff and it does come with a made in *insert random country here* sticker on it. I know I want our country to stay in one piece
Much easier to suss out how to not circumvent the proceedures, but how to just make life hard enough that you get a couple of hours head start
