Today's agreement gives a way for the Welsh Government to borrow money to pay for an M4 relief road to ease the massive congestion that we regularly see around Newport.
It's also sparked angry warnings from environmentalists that the project will threaten the internationally important Gwent Levels.
Our Business Correspondent Carole Green has been listening to the arguments
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Missed tonight's Wales at Six? Catch up here.
Not a pleasant night with heavy showers for much of Wales.
Simon Tilley from Caerphilly made a film documenting his baby's life and how he's trying to make him into a Star Wars fan.