"Watch How insanely easy it is to hack US voting machines"

[JohnnyRingo]

28. There should always be a printed paper trail

One that is printed in real time as the vote is cast and reviewed by the voter before leaving the machine. That way the voter knows the vote was accurately recorded and stored under lock & key for a number of years in case of a dispute with the electronic tally. That paper trail, if properly signed off by workers at each step, would make it simple to track foul play.

Machines also have no reason to be connected in any way to the internet. Do any states actually have machines that are connected? Why? Are there still states that don't have a physical paper record?

I'm in Ohio, and we watch our vote print in real time, which then heads for secure storage at the county elections board for a number of years. The paper spools are mated to each machine by s/n and must agree on the count. Regardless, manual recounts are relatively easy.