The best thing for the 'enemy combatant' law (so far) has happened: it's not going to be addressed or challenged (at this time) by the Supreme Court.
Jose Padilla's detention appeal was in line to be considered by the Supreme Court until they decided, today, not to hear it.
Padilla was detained in Chicago returning from Pakistan on grounds that he was intending to commit acts of terrorism in the US and held for 3 years in a Navy brig in South Carolina. Recently, he was released from being in 'enemy combatant' status and charged with non-terrorism crimes and sent to Florida. His lawyers appealed the change in status, because it made their case - questioning the legality of the President's ability to designate US citizens caught on US territory as 'enemy combatants' - irrelevant. The appeal was rejected in the 4th Circuit and was headed towards the Supreme Court
No such luck. Padilla's still in custody, though not as an 'enemy combatant.' Better luck next time. Souter and Breyer dissented.
Supreme Court Refuses to Review Padilla Case, Washington Post
For more background, see my previous posts: