The tour, featuring such luminaries as Pantera, Slayer, Static X, Biohazard & Vision of Disorder has already been forced to cancel the Dublin date due to Slayer, Static X & Biohazard still being present in the states. It is unclear whether any flights will be available in time for the dates in London, Birmingham & Glasgow and it is likely to be tomorrow morning before a decision is made.
However, the rest of the acts have been in the country since Monday so it may be a possibility that the dates will still go ahead without the aforementioned bands.
