Plaid Cymru's Shadow Transport Spokesman, Rhun ap Iorwerth says he believes that todays decision is a costly mistake. He believes that there will be a 15 year wait for the project to be delivered when an alternative route could have been completed a decade sooner.
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There'll be a few wintry showers over the hills tonight but these will ease to leave frost and ice in places.
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Amazon workers in Swansea say these claims are "hearsay" and they "put safety first".