From what I saw the DfT and TSA should have plenty to write about when they visit in the near future.
Great Hi-lo's though, they looked in better condition than many on the ramps at UK airports!
They could probably benefit from redesigning the departing pax flow from C-in. At the moment pax flow is a mish mash from C-in to security/Customs, then back through the crowds to Emmigration controls. If you add in Pax profiling before c-in then it quickly becomes a heaving scrum of pushing pax.
A lot of potential though.