Barack Obama wants to give families a refundable $4,000 tax credit for
college, if their children complete a required amount of community service.
It's a fine, conventional Democratic idea. It could be a lot more powerful,
though, if Obama coupled it with an old Republican favorite - depositing his
$4,000 credit into private accounts like the so-called 529 plans that so many
upper-income families use to save for college.