Well, largely because for far too many years we've seen in Wales a complete lack of investment by the UK Government in our rail infrastructure, particularly on our train lines, which remain a responsibility for Network Rail, and, therefore, the Department for Transport, and as I've said on many occasions now, this major problem can be largely attributed to the lack of wheel-slide protection. Why? Well, because the contract that Arriva Trains Wales was awarded was, simply, not fit for purpose. It did not incentivise them to invest in such technology, nor did it compel them when Welsh Government wished for such protection and technology to be installed on trains. 

I was pleased that the first service to return to full and normal operation was one of the north Wales services, and the Member points to an industry insider who gave him intelligence on the lack of wheel lathes in Wales. Well, it's true that when you have huge demand for wheel lathes, if you can't meet that demand with what you've got in your own country, you go elsewhere. Llywydd, I'm pleased to say that we did just that, and we were able to identify additional wheel lathes outside of Wales, and that's why we got so many trains back into full use so quickly.