Security worries? Yeah you should be worried. Apparently, the admin staff (phone operators, secretaries, office cleaners etc.) are undergoing training to fill in for those on strike. What a perfect time for the terrorists to strike (no pun intended). Perhaps if we ask nicely they'll take out Parkin at the same time and do us all a favour.
Oh, and as a passenger or member of the general public, don't get taken ill or have any kind of accident that may require first aid because that is supplied by trained security personnel as well.
Don't let there me any kind of accident or incident either because security are heavily involved in these sort of things also.