University of Arkansas officials say more than 400-thousand dollars have been spent defending the school against Nolan Richardson`s discrimination claims and the costs could rise. The current figure includes money spent on expenses for university lawyers, payments to outside lawyers and travel costs from the Fayetteville campus to the trial in Little Rock. Judge Bill Wilson is deliberating on the evidence from the racial discrimination trial, which ended last week. Richardson claims he was fired in March 2002 because he is black and spoke his mind. The university says it decided to fire him because he had said he wanted the school to buy out his contract.