I don't want someone to know who I voted for. You can verify that I'm a citizen and eligible to vote at the door, but I don't want to be traced to a particular ballot.
I already have had enough problems with governments misusing my confidential information.
The only experience I've had with the election process is voting, but..
How do they come up with statistics such as, "21% of Federal workers voted for McCain', or 'teachers voted 31-69 for the amendment'.
How could they come up with those figures if they didn't know you, where you worked and how you voted?
Where I vote the poll worker finds me on a list, writes a unique number on the ballot and hands it to me.
I'll bet that that ballot can be traced right back to me.