The Presidential Commission investigating the justification for the invasion of Iraq has said that U.S. intelligence on Iraq was “dead wrong in almost all of its prewar judgments about Iraq’s weapons of mass destruction.” At a time when Washington is accusing Iran of nuclear ambitions and pressuring North Korea on its nuclear programs, the report says, “Across the board, the intelligence community knows disturbingly little about the nuclear programs of many of the world’s most dangerous actors.” A key chapter in the report — on U.S. intelligence on alleged nuclear weapons programs in Iran and North Korea — was classified and not released publicly. But sources familiar with that section said it was among the most critical, finding U.S. intelligence on Iran’s nuclear program in particular to be inadequate. The report is very critical of former CIA Director George Tenet but avoids any criticism of President Bush and Vice President Dick Cheney. Here is Michael O”Hanlon of the Brookings Institution.