I posted a while back about this.
Now it appears from this in the Miami Herald that more questions have been raised.
Pentagon prosecutors touched off a protest — and issued an apology this week — for likening the Seminole Indians in Spanish Florida to al Qaeda in documents defending Guantánamo’s military commissions. . . . . A native American advocacy group complained to the military court. Defense lawyers for two Yemenis convicted of war crimes at Guantánamo countered that the behavior of Jackson, the future U.S. president now on the $20 bill, was no shining example of American military justice.