Olympics in the nude! I take it Thom you haven’t seen the women’s volleyball competition. I'd be for it except for power lifting, the clean and jerk might prove hazardous. Also where would the athletes put their trading pins?

Voting Machines: I suspect that optical or electro-mechanical voting machines can be biased in subtle ways. For example, if an optical scanner has separate sensors for each candidate, then if some where dirtier than the others, then the dirtier ones would falsely record more marginally registered votes (not fully filled in bubbles, blue/vs black ink, etc.). The scanners would probably pass the tests that are thrown at them, but the ones with dirty sensors would be at a disadvantage.

I do believe that an electronic voting machine could be properly constructed so that it could be trusted. Sadly, our current design where everything happens in one reprogrammable black box with no audit trail between the logical units is a recipe for disaster. You definitely do not want a general purpose machine used for this purpose.