In most democracies other than the United States, voters with disabilities are often required to forgo ballot secrecy in exchange for their right to vote. In the United States, that's considered unacceptable, and in fact it is illegal. This is why we have ballot-marking devices.

Sources

• Can Voters Detect Malicious Manipulation of Ballot Marking Devices?
• Voter Verification of BMD Ballots Is a Two-Part Question: Can They? Mostly, They Can. Do They? Mostly, They Don't
• Can Voters Detect Errors on Their Printed Ballots? Absolutely
• Do Ballot Barcodes Threaten Election Security?

How Voting Works is a limited series podcast made by VotingWorks, the only non-profit maker of voting machines in the US.

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