T4 and all the other parts of LHR are bursting at the seams and the results are there for everyone to see on most mornings. Ah well, once bmi and all the other Star Alliance airlines have moved into T5 in a few years time BA will be able to run lots of their longhaul from T3 so the problem will be sorted!!
Doh, must have been dreaming, slumy old T1 for us I think.