Little Bombs Lyrics

Lyric discussion by HighOnSunday51 

Cover art for Little Bombs lyrics by Aimee Mann

This song is unbelievable and one of her best ever.. what does she mean by the sweet green trees of Atlanta bursting?? This song is apparently about John in the story, I guess, since the photo in the booklet is of him lying in a bed in a hotel.. why are the trees bursting? he could possibly just be really high and hallucinating since he's a drug addict. what about the 'unexploded shell' though? is it a metaphor for John and how is he about to 'burst' or full of despair/etc? or more literal somehow.. which would be intense