The summit premiers worldwide September 19th. Sign up for your FREE summit pass!
The advocate wanted to take footage at the event
The musician said he learned about 'the cruelty-free life' from Carbstrong
He says the backlash is coming from concern from the meat industry
The campaigner has been blasted in the media for being 'militant'
There has been no proof published of the reported threats
Some British farmers feel 'under attack' from activists
The veteran shared lessons he's learned over the years