Transport Secretary says that the HS2 will be first main line north of London for nearly 120 years.
Patrick McLoughlin has told the House of Commons that it is not just about faster trains to London - but about how our greatest cities are linked.
Mr McLoughlin said he is determined that HS2 benefits will be spread much wider than just those places served by the line.
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Government ministers from the UK, France and China attended the event.
Tonight investigates the increasingly sophisticated methods criminals are using to target the elderly and defraud them of their savings.
If you've been anywhere near Trafalgar Square today you'll notice something different.