OffTheCLock - In addition to what Not the Alliance noted:

This was a settlement between Khadr and the Govt. of Canada.  Kahdr was initially suing for 20 million.  It's unlikely he would have lost.  And the Supreme Court never sets a monetary amount (that I'm aware of).

We could have saved ourselves a lot of trouble by bringing Khadr home and trying him with whatever we wanted - war crimes, treason, etc.  Although it's unlikely we would have won because  - no one knows what happened on that battle site or who threw the grenade that MIGHT have blinded one US soldier and killed another.  If anyone knew, the military tribunal in Guantanamo would not have had to settle for a plea bargain from Khadr.