New HS2 boss Sir David Higgins says his argument to win support is "what's the alternative?".
Higgins: "Transport is the centre to all forms of regeneration... In the south it's about capacity, in the north reconnectivity."
Higgins adds that HS2 will fail if it's a political football and believes it can be cheaper if it's built quicker.
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But while he wasn't showing it, PC Tyler O'Hare was enjoying every minute of it.
The suffragist leader has been immortalised in bronze in Parliament Square.
Commuters could be caught out by the alterations which will see many existing trains leaving stations up to two minutes early.