Lyric discussion by skistar123 

Cover art for Seconds lyrics by Human League, The

Of course, having assumed it was MLK, it could be Kennedy:

the "parade" is the cars going past and if you take the official stance to be true, Kennedy's assasin was in a high building which always seems pretty dark (ie "hiding from the sun") on TV documentaries!

The "outside" would here be the people who had come out to greet Kennedy in Dallas Texas and obviously they would be happy if they were JFK supporters! And like MLK the "for a second" is referring to how quickly things turned to dismay that he had been murdered.

The shot was definately "heard around the world," being heavily covered in the media for days.

The only thing I could link to Lennon was the "waiting for your fame" which is pretty self-explanatory really!

"waiting for your fame" I believe is referring Lee Harvey Oswald.