The 4th Circuit Court of Appeals blocked his transfer from military to Justice Department custody last week, noting differences between the criminal charges brought against him in November and the accusations made against him as an enemy combatant.

CNN: Feds to high court: Allow Padilla move

Contending that they have met the legal requirements of renewal and relocation, they have asked a Cook County Circuit Court judge to allow the license transfer.

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The 4th U.S. Circuit Court of Appeals has held up Padilla's transfer from a military brig in South Carolina.

CNN: Specter launches probe of handling of case