(Fri. 7/27 M.E.) A year ago, state education officials announced that a private company's mistakes had resulted in 47-thousand inaccurate scores on one of the required Basic Standards Tests. Thousands of Minnesota students were told they failed, when they actually passed, and some seniors were wrongly denied diplomas. The state's education commissioner says steps have been taken this year to prevent another test snafu, but she warns it could happen again. Minnesota Public Radio's Tim Pugmire reports...