The report says UK schools have had 35 years of "piecemeal reforms" and the result has been a "gentle upswing in performance", judged by international benchmarks, but also a "long tail of low achievement".

BBC: CBI complains of 'exam factory' schools

But White House aides are tempting fate with their reluctant, piecemeal and contradictory disclosures of what they knew and when they knew it, especially about a report on the Internal Revenue Service's 18-month effort to target tea party and other conservative groups for special scrutiny.

WSJ: Best of the Web Today: Why Did Lois Lerner Take the Fifth?