It said the Bush administration was using "risky assumptions" about the savings.
But it was "a risky assumption," he said in an interview, because no one knew how close the two types of cells were.
She decided to wait until voters started really tuning in - a risky assumption in itself.
They said the gaps could become even worse if some risky assumptions about revenues and savings failed to pan out.
His latest report includes what may be one of the riskiest assumptions an economist can make.
This allows an adaptive optimizer to make risky assumptions about the code.
If the wells prove viable - a risky assumption in the energy business - then the life of the contract might be worth $1.7 billion.
The riskiest assumptions in the plan were intended to try to force the state to assume some costs and tasks from the city.
The report is expected to identify a number of risky fiscal assumptions in the Mayor's plan.
He added that since there were fewer risky assumptions, it would be easier to manage unforeseen events.