Where do you stand on requiring Minnesotans to produce a photo ID to vote?

Today’s question from MPR News got me to thinking:
Where do you stand on requiring Minnesotans to produce a photo ID to vote?
I have extremely conflicted views about this question.
In theory and in the abstract, it sounds like a good idea. Who doesn’t want more security, more reliability in elections.
But the more I dig at this question, the more it becomes a mess of a question.
The amount of voter fraud proven over the years is minimal if not ancedotal. So why
That’s what bothers me. Why do those, mostly of the conservative persuasion, want these voter ID laws so badly that they spend all this time and energy across the nation to address this non-issue.
The answer has to be–to discourage voting by those who aren’t of their stripe. Minorities. The poor. Those who don’t necessarily have a driver’s license and might have a birth certificate…somewhere, usually forgotten.
It is that motive, that desire to reduce turnout of those of different political leanings that poison the well for me.