New M4 tunnels proposed for Brynlgas bottleneck near Newport

"Wales' former transport minister has said ambitious proposals to widen the M4 at Newport were deemed unnecessary while he was in office. 

Ieuan Wyn Jones was responding to Welsh government proposals for a busy stretch of the motorway which include boring two new tunnels at Brynglas."

http://www.bbc.co.uk/news/uk-wales-politics-17264422