2009 Lincoln spots - what is causing this?

I am opening one of four bank rolls I got today. Every one so far in the roll has these aweful spots. Is this caused by something the mint did or is it from the company that rolled them for the bank? I finally get some rolls at face and nothing to add to my collection because they look aweful. You can see it with the naked eye, some are as bad as this one and some not so bad but every one so far has spots.

Rob the Newbie
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www.brunkauctions.com
My turn.
I tend to think this is a post strike kind of thing, not a pre-strike kind of thing.
And that these were once darker spots where corrosion had started. The rinse stopped that corrosion, but has at the same time exposed an etched crystalline surface in the shape of the original spot. The whitish look comes from the way the crystals reflect the light and since it is in the surface of the copper, it is quite impossible to remove with further chemical action. They sure look like hard water spots, but these are not simple carbonate deposits that can be dissolved away.
<< <i> Is this prevelant throughout the Denver pennies? >>
Denver?
try both.
They may even get wshed once more before they are coined!
The trick will be in finding coins without those spots!
The name is LEE!
WS
<< <i>Makes me wonder if the spots are done intentionally. Create a frenzy with low mintage coins, make it near impossible for collectors to acquire them without paying a premium, then on top of it make it hard to find a quality coin. I mean seriously, the technology thats out there, especially what technology the government has, these spots should be an easy fix. They have to know it's an issue... >>
A government agency actually succeeding at an intention??? I doubt it.
..........needs some of this in the rinse cycle.