I defer to your expertise but did you ever work in third-world countries? (To use the phrase as a proxy for inadequate political/physical infrastructure)
To use the engineering aphorism, just because it can be done doesn't mean it is done. I'm curious about how physical security/verification works in that environment vs a hypothetical crypto solution.
Observing third world elections is on my bucket list.
Election and voting chicanery happens plenty in the USA. No need to look abroad. Merely lifting the floor here would be transformative.
The silver lining from the oversteer triggered by Gore v Bush 2000 is that HAVA did lead to greater federal involvement in our locally administered elections. eg Election Assistance Commission http://eac.gov is now fairly proactive.
re "vs a hypothetical crypto solution"
Estonia's online voting system hasn't faired well under scrutiny.
If you've worked in third-world countries, you should realize that elections are a human problem determined by societal attitudes. Electoral fraud is not a technical problem.
To use the engineering aphorism, just because it can be done doesn't mean it is done. I'm curious about how physical security/verification works in that environment vs a hypothetical crypto solution.