Watched a Go-Around in front of me the other day. Can't remember the airline but they were LHR 'visitors'
.
ATC had told them constantly to reduce speed, 160 to 4 but they were a touch (read alot) quicker. Closed the gap rapidly (down to 1.5 nm on my TCAS) and then suggested to tower that they could 'land after' the one that had just touched down (Air France I seem to remember, never renowned for being the quickest off the runway). It was quite amusing listening to the resigned tone of the tower explaining, very slowly, that they HAD to go-around. Eventually they did.
From where I sit the guys and girls on LHR approach, director and tower do an absolutely fantastic job and I am thankful for your professionalism every single day.
Keep it up.
W2P