i think it can work if people are not all flashy (red black and green liberation jumpsuit) with what they are doing/ represent. as far as when, i don't think people will agree on that, but i do think an event will have to set it off. it will have to be a collective response to a particular situation that people just can't take no more. a blazing injustice that makes stomachs turn.

"Shake that load off and sing your song,
Liberate the minds then you go on home"
-Erykah off of 'Liberation' (Outkast)