it might help to get the facts straight

first, yes, they can scan to see how much cash you have on your person / in your vehicle at that point in time. they've been doing that for awhile.

for example, I75 in florida to miami is hot road for the drug trafficking...so if car has $10,000+ in car at time of scan, you can bet your booty you will get pulled over for further investigation. (i.e. the average joe does not travel with this type of cash, and the majority of people who do are those that are normally involved in criminial activity.

next,

is BS that can scan your credit cards, know your balance, etc.