Fair enough, you were having a joke - but there are some out there (a couple of Welsh Assembly members included) who actually take the view that it is unacceptable for Welsh train passengers to have to travel through England to reach other parts of Wales. Which is a ridiculous notion.
As for my signature - it's a tongue-in-cheek observation that many of our train services and station/line improvements (in Shropshire) are being funded by the Welsh Assembly! (As opposed to being helped out by a UK or English government/body..) We're also being "fortified" with German subsidies in an indirect way via WSMR!
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Would it though? Perhaps to go from either North or South Wales to Mid-Wales... but to go North-South the existing Hereford/Shrewsbury route is pretty quick and I don't think another route (unless engineered expensively) through the mountains or along the coast would be as quick. The electrification of Newport-Shrewsbury-Crewe is surely a more useful way of spending money, than trying to reconstruct a series of lines to go North-South Wales via Wales only.