I am thinking that with the arrivals hall now empty work can actually now start on building walls etc for the new security screening area so maybe security screening will move downstairs over the summer?
I think while the work is carried out a fire exit from baggage reclaim has to be maintained through the old arrivals hall.
On a completely different subject with the speed limit now increased between the M1 and the airport I timed two recent journeys as taking just 4 minutes each to and from the CTA.
