Krugman - The Iceberg Cometh

Advocates of privatization almost always pretend that all we have to do is borrow a bit of money up front, and then the system will become self-sustaining. The Wehner memo talks of borrowing $1 trillion to $2 trillion "to cover transition costs." Similar numbers have been widely reported in the news media.

But that's just the borrowing over the next decade. Privatization would cost an additional $3 trillion in its second decade, $5 trillion in the decade after that and another $5 trillion in the decade after that. By the time privatization started to save money, if it ever did, the federal government would have run up around $15 trillion in extra debt.