The release of Green Day's follow-up to 2004's monster hit American Idiot has not been smooth for the pop-punk kings. A question of censorship has seen them come to blows with U.S corporation Wal-Mart.

Wal-Mart - who own the the ASDA chain of supermarkets in the U.K - have refused to stock the band's new album after them deemed it 'unsuitable' for their fragile customers.

Wal-Mart company policy states that they will not stock any music adorned with the "Parental Advisory" sticker.

It's a fair policy though, there's nothing like a bit of bad language to really push you over the edge when you're in Wal-Mart queueing for your pack of 50 hangun bullets, firearms accessory bag, copy of Grand Theft Auto and the A-Z of the local high schools.