There's a difference.

A lot of 'em, really, but David Postman makes one clear…

McGavick said he supported means testing -- voluntarily at first but then mandatory if people don't send the government back enough money -- and shifting Social Security to privately managed individual retirement accounts. He would guarantee benefits of people at or near retirement age.

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Cantwell opposes any privatization. She encourages people to save more on their own but "believes it is too risky to convert an individual's Social Security account to an unguaranteed private account managed by Wall Street."

She opposes means testing or binding Congress to an up or down vote on a plan from a bipartisan commission, which she says would be abdicating oversight authority.

Which side are you on?