Even if you somehow mandated a special ecash chip, #2 with #4 would seem to be very difficult to secure - with all the motivation in the world to crack. It's t

Even if you somehow mandated a special ecash chip, #2 with #4 would seem to be very difficult to secure - with all the motivation in the world to crack. It's the clipper chip, except this time with digital cash! Seems like it would also have privacy and gov't monitoring concerns.