Remember those no interest home loans that caused the financial meltdown?

Last year the Poway Unified School District made a deal: It borrowed $105 million from investors to fund a final push in its decade-long effort to revamp aging schools.

In many ways, the deal was unspectacular. Some of the money was used to pay off previous debts from delayed and over-budget construction projects. The rest went towards finishing upgrades that Poway taxpayers had been promised as far back as 2002. To a casual observer, it was just another school bond.

But Poway Unified’s deal was far from normal.

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