Since that's also possible with the current voting system, it can't be considered a strike against this proposal. Absentee voting is possible in every state, u

Since that's also possible with the current voting system, it can't be considered a strike against this proposal. Absentee voting is possible in every state, usually without any reason given, and any absentee voter can just hand the incomplete ballot over to the attacker in exchange for whatever compensation. Since offering your vote for sale is illegal in any case, this has to be considered a threat that is so minor as to be nonexistent.