OK, here's something interesting.
Years ago (back in Pop Mart times) a composite company near me was asked to quote & manufacture the cocktail sticks & arch for the popmart stage. The only reason I found out about it was that I copied the plans they used to quote from & they had the U2 logo on them.
Unfortunately, the composite company no longer exists, but many of the employees where 'swallowed up' into another composite company, & then again, blah blah etc etc.
Well, it just so happens that a friend of mine works for this now re-owned re purposed company & he told me that in July they were asked to 'tender' for a job & again it had the U2 logo on it. He said the items in the drawing were 'very' non descriptor like arc shaped beams (or something) but not that big. Possibly part of an interlocking structure. The only interesting thing was that the tender deadline was September the 13th. The reason the date was so pertinent was that it is a Friday, as in 'unlucky Friday 13th'.
Make of it what you will, (& I know most will be thinking, another friend of a friend crapola) but, 'perhaps' there are things afoot behind the iron curtain