The lyrics reference the 72 Munich Olympics when 11 Israeli athletes were shot on the roof of their living quarters in the Olympic village by Arab/Palestinian terrorists. "Arabs and Jews, boy too much for me"
In the same year that Nixon went to Peking (now Beijing) China to broker a deal with eastern nations that included a staged withdrawal from Vietnam "Word from Peking".
Lindesfarne's Fog on the Tyne was a number 1 album that year.
I think it is actually the first socially and politically charged song that I can think of from Genesis.
It references the horrors going on around the world and also the mindless celebrity hedonism ("the trouble was started by a young Errol Flynn") of the entertainments world, on tv and film that distracts the people from all that`s bad in the world. All cast in a pastoral English flavoured piece of music.