By Yael T. Abouhalkah, Kansas City Star Editorial Page columnist

In a stunning development, the worst fears of KC taxpayers may soon occur regarding Power & Light District debt.

Taxpayers may have to fork over $4 million or more to meet the district's bond payments in the current fiscal year ending next May.

That would divert $4 million or more from KC's basic services during an already severe budget crunch at City Hall.

Mayor Mark Funkhouser -- who has warned of this kind of shortfall for years -- and City Council members are waiting for the city staff to hand out exact estimates regarding taxpayers' liability for bond payments. That should happen in the next month or so.

Based on interviews with city officials on Monday, the news is likely to be bad for taxpayers.

Reason No. 1: Because of the worldwide credit crunch, the city is having to pay higher interest costs on the hundreds of millions in bonds it issued to build much of the Power & Light District's infrastructure.

Reason No. 2: The district is not meeting original revenue expectations. That's partly because the district opened later than expected and partly because the grocery store, the new movie theaters and other retailers still remain unopened.

Supporters of the district point out that any extra city assistance is worth the costs, considering the asset of having a new entertainment area next to the Sprint Center.

It's a valid stance -- up to a point.

However, former Mayor Kay Barnes and other project backers also continually said the risk to taxpayers would not be that great. They said the district's revenues would cover the bond payments.

Now that may not turn out to be the case. And that would make the district a much more expensive investment for taxpayers.