Full body cavity scans on every entry and exit... A micro-sd card, USB plug, and necessary bits to connect them are easily small enough to be swallowed, hidden under your tongue, stuck up your anus or hidden in any number of ways.. Clearly they need to be regularly strip-searched and x-rayed.
Coincidentally, I'm re-reading Snow Crash, read it first in the nineties.
When I first read it I felt a little like a snickering boy looking up dirty words in the dictionary, reading about failed institutions and government military and intelligence services as spun off corporations.
Now if you skim off the entertaining over-the-topness from the book, you have today. Booz Hamilton anyone? That program's never going away, there's too many jobs, billions, and lobbying money at stake.
