So now we have
"... The then Sen. Obama's  presidential campaign is allowing donors to use largely untraceable prepaid credit cards that could potentially be used to evade limits on how much an individual is legally allowed to give or to mask a contributor's identity, campaign officials confirmed.
Faced with a huge influx of donations over the Internet, the campaign has also chosen not to use basic security measures to prevent potentially illegal or anonymous contributions from flowing into its accounts, aides acknowledged. Instead, the campaign is scrutinizing its books for improper donations after the money has been deposited.
The problem with such cards, campaign finance lawyers said, is that they make it impossible to tell whether foreign nationals, donors who have exceeded the limits, government contractors or others who are barred from giving to a federal campaign are making contributions..."
The real reason the Chamber of Commerce doesn't want to release the names of it's donors is to protect them from some fresh manner of hell reigned down from the unholy cabal of the Executive branch, SEIU, ACORN, thugs sent at the behest of the Tides Foundation and just plain old willing dupes - who may show up to "protest" your contribution - in your front-yard, on your front porch when your not home and scare the crap out of your kids or parents!