It's not undetectable. There are many ways to determine if a vote is fraudulent. In person voter fraud (the only type that would be prevented by Voter ID) is the most difficult, and unlikely fraud to pull off. It doesn't scale well, is easily detected due to signature cross-checking, and according to the Dept of Justice, only 13 cases occurred between 2000 and 2010. In that time period, there were over 649M votes cast in the US.
Signature cross-checking just checks the signature with the voter registration. It doesn't tell you if the registration is fraudulent. Don't you recall the articles about thousands of people being allowed to register in California that shouldn't have?
>and according to the Dept of Justice, only 13 cases occurred between 2000 and 2010
Again, how would they know? You appear to think voter fraud is only a mismatch signature on the ballot and signature in voter registration.
No, I don't recall the articles you mention. Do you have any links?
You're asking me (and the authorities for that matter) to prove a negative.
Can you show me any evidence that supports your fears of voter fraud in the US? Other than a few rare cases, I haven't seen any evidence.
The reason I believe the system is working fine without Voter ID is that voter fraud just doesn't scale, either with manual paper ballots cast in person, or via absentee ballots and VBM. It's just too much work, too high a chance of being caught for the reward.
Now what does worry me in regards to vote integrity is electronic voting systems. I will never trust those.
