BlueShift:
As I understand it (IANAL) the US want him for a bunch of copyright violations which they have a reasonable chance of having a case that will stand up in court (whether they would win or not is what courts are for deciding) BUT, those charges are not sufficient to have him extradited, as extradition requires a crime that in NZ would result in (I think) more than 2 years prison, and copyright crime in NZ isn't treated that harshly. So, the US have tacked on a pile of racketeering and organized crime-type charges, which meet the NZ standards to be eligible for extradition, but they will have a much trickier job of persuading a judge that there is a case to answer for them.
Yup, this is pretty well accepted to be the case. Watch how fast the racketeering and money laundering charges are dropped once (if) he's on US soil as there are so far removed from all the arguments the prosecutors have been making to date that it's pretty obvious they have no real play there.
Given copyright infringement isn't an offence he can be extradited for, the hearing should probably be focusing on the racketeering and laundering changes alone and from all i've seen so far, I doubt they would get far.
Love him or hate him, it's pretty hard to argue he's not getting proper justice here - and we should all be concerned about that.



