up, but their failings before the explosion was unforgivable as far as i m concerned. also facing criticism are the arena operators, smg, and their contracted security providers, showsec. the inquiry found two teenage stewards from showsec ignored concerns raised from a member of the public over abedi s behaviour. showsec has previously admitted falling short, but said its errors didn t contribute to the bombing. here s the inquiry chairman again. an important part of the report deals with what are called missed opportunities . there were a number of opportunities to identify salman abedi s activities as being suspicious on the night before he detonated his bomb. what i cannot say with any certainty is what would have happened if those opportunities had not been missed. then this is a statement from arena operator, smg. it says that that while it believes