HS2 is the wildest white elephant in British history. Please put it out of its misery | Simon Jenkins

The government is in thrall to the sunk-cost fallacy. Scrap the project, and use the money for a renaissance in urban transitSo it is official, as if that makes a difference. After a 15-month review by the new chief executive, the transport secretary, Heidi Alexander, has revealed that HS2 will now cost and trains may not start until 2039. Alexander called the original design a “massively over-specced folly” and called the increase in time and costs “obscene”. Indeed it possibly ranks as the wildest white elephant in British history. In comparison, Donald Trump’s White House ballroom is a garden shed, and Dubai’s Burj Khalifa a mere sandcastle.This week, Alexander, the ninth transport secretary since HS2 was proposed, admitted the project made her angry. As she dusted off her department’s latest defence of its appalling conduct of this fiasco, she tried to feign surprise. She has been in office 18 months. Don’t tell us she did not know.Simon Jenkins is a Guardian columnist