As soon as the technology & costs fully catch up with the idea ...
It sounds so "proper": USE OF BIOMETRIC IDENTIFICATION TECHNOLOGY
TO REDUCE FRAUD IN THE FOOD STAMP PROGRAM (1999)
If they really wanted to reduce fraud, they'd get rid of the "program" and quit hassling people trying to grow their own. BTW, the biggest fraudsters are behind the scenes running it, not the people you see at the stores. No more shopping for your old, sick auntie. She'll just have to get better and do her own ... or starve.
But, of course, it was never really about the food, was it?