Last month the Commons Education Select Committee issued a damning report into the plans, which it described as a "red light" warning over the changes.
Last week a report from the Commons Education Select Committee issued a "red light" warning to the government, urging it to slow down and rethink its proposed changes to GCSEs and the exam system.
"For now the warninglight is orange but it risks turning red if the appropriate measures are not taken, " he said, recommending a national conference of all political parties to forge a common anti-terrorism strategy.