Ben Goldacre cleans up some bullshit spouted by the entertainment industry (and lapped up by the tabloids) regarding the cost to the economy of illegal downloads:
Home taping didn’t kill music.
Gareth Richards on 4 stands up made a good point about piracy being compared to stealing a handbag. Of course you wouldn’t steal a handbag. But what if you built a machine that could duplicate one, would that be wrong ? Apart from anything else, if the original owner lost the bag again, she could come to you and use your backup.