[Bartweiss]

This is my reaction too. There are systems with no security flaws, but they tend to be small-surface devoted hardware. Something the size of Windows will consistently turn up zero-day flaws that could be used against voting, whereas plenty of on-metal microcontroller programs have no holes at all.

Frankly, a really reassuring voting system would be the exact opposite of what we have: it would be open to all security researchers and consist of minimal, verifiably-safe code to count vote totals.