- Associated Press - Thursday, June 23, 2011

A government scientist in charge of reviewing the safety of the Yucca Mountain radioactive-waste dump in Nevada is accusing his bosses of letting “political pressures” and “manipulation” taint the process.

Aby Mohseni, acting head of high-level-waste repository safety, says in testimony prepared for a House committee hearing Friday that Nuclear Regulatory Commission Chairman Gregory Jaczko and other senior officials have allowed politics to influence the staff’s scientific work.

“Apparently, the NRC’s senior leadership is ineffective in upholding the integrity of this agency,” Mr. Mohseni said. “This is not where an independent safety organization should be.”

Mr. Jaczko, a former aide to Senate Majority Leader Harry Reid of Nevada, Yucca’s leading opponent, was appointed to lead the independent agency in 2009 by President Obama. Since then, he has made a series of decisions to delay, hide or halt work on the Nevada dump, a project Mr. Obama promised to kill in his campaign for the White House.

Mr. Jaczko’s actions have been criticized by House Republicans, by his own scientific staff and by the NRC’s inspector general. The IG report found that Mr. Jaczko acted within his authority and broke no laws. But it also concluded that to get his way on the issue he failed to be forthcoming with other commissioners.

Mr. Mohseni’s remarks are the most scathing to date from inside the agency, and suggest that not much has changed since the inspector general’s report or investigations by Republicans in Congress. Mr. Mohseni alleges that under Mr. Jaczko, information has been and continues to be suppressed and manipulated for political purposes.

A nuclear engineer, Mr. Mohseni has worked for the NRC since 1990. He had been the second-highest-ranking person in the repository-safety division since 2006, and was named acting director after Japans nuclear disaster forced the agency to juggle positions.

“We were unprepared for the political pressures and manipulation of our scientific and licensing processes that would come with the appointment of Chairman Jaczko in 2009,” Mr. Mohseni said. Such manipulation, he said, is an assault on the agency’s congressionally mandated mission.

By law, the NRC must review the government’s license application for the Yucca dump. But the process became muddied after Energy Secretary Steven Chu sought to withdraw the application for Yucca last March, saying it was not “a workable option.” The licensing board said the government failed to make a scientific case for why the application should be withdrawn. It has been in limbo ever since.

With no vote from the commission on whether to uphold the licensing board’s decision, staff continued with their review, knowing that they could still be called on for their expertise. In October, Mr. Jaczko said he was shutting down the work, a decision he said he was making for budgetary reasons.

Earlier this year, Mr. Mohseni was one of four scientists to file objections to a memo because it failed to mention Mr. Jaczko’s role in the decision to shut down the scientific review. The staff said senior managers working on the memo refused repeated attempts to put in writing that it was Mr. Jaczko’s decision alone.

An NRC spokesman said the agency would have no comment about Mr. Mohseni’s remarks, or those of the other scientists scheduled to testify Friday.

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