First of all they don't do mail in ballots the way that some democrats are wanting to do.
Are there different methods?
No?
Ballots did not "go missing". They were requested and not used.
I take it you are unfamiliar wth the way our government has worked for more then 200 years. Checks get sent to dead people all the time. Checks and other materials are sent to old addresses.
Considering human nature it is not beyond the realm of possibility that someone or a number of people might use those ballots to do what they consider to get the right person elected.
If we did not have things like the hanging chad, the finding ballot boxes on loading docks, or people stuffing ballot boxes or any of the other things you hear about I would have no problem with everyone doing mail in or Internet voting.
To claim that a small portion of our eleigible population votes by mail in means it will be perfectly fine to do it wholesale.
Let put it in easy to understand form. Just because four of the people you know has never killed someone it does not mean that there is not nor ever will be someone murdered.