HS2 could cost more than £100 billion and may not open until 2039, Transport Secretary Heidi Alexander has announced.The Cabinet minister told the Commons she was "angry" about the "obscene increase in time and costs", which she blamed on "the failures of successive Conservative governments".

HS2 could cost more than £100 billion and may not open until 2039, Transport Secretary Heidi Alexander has announced.The Cabinet minister told the Commons she was "angry" about the "obscene increase in time and costs", which she blamed on "the failures of successive Conservative governments".