OAK HARBOR, Ohio -- The Davis-Besse Nuclear Power Plant near Toledo, Ohio, came narrowly close to having a nuclear accident, and U.S. Rep. Dennis Kucinich wants to know why.

Kucinich held a congressional field briefing Thursday with First Energy Corp. and the Nuclear Regulatory Commission.

A gaping acid hole was discovered in March, and that forced the plant to close.

Scientists said there were obvious signs of trouble missed by First Energy and the NRC for years.

"It was a failure on our part to integrate all information. Nobody put the data together and connected the dots," said George Edgar, of First Energy.

The NRC said First Energy must show significant changes before it's allowed to restart the Davis-Besse Plant.