Well, the US government has revoked a plea deal, agreed earlier this week with Khalid Sheik Mohamed, the man accused of masterminding the September 11th terror attacks in 2001. The deal angered some relatives of the 9/11 victims as well as Republican leaders. Here's our North America correspondent, Peter Bowes.

This is the latest complication in this already extremely long-running case. Khalid Sheik Mohamed, the alleged architect the September the 11th attacks, and his two alleged accomplices have been held at Guantanamo Bay since 2003, when they were detained. The case has been delayed year after year after year because of complicated pre-trial issues. But now we're here just a couple of days ago, that there had seemingly been a plea deal, an arrangement, whereby they were pleaded guilty with the death penalty being taken off the table. And that sparked widespread anger a outrage from survivors, from family members of victims, those who died on that day. Mike Johnson, the Republican speaker of the House of Representatives, said it was a slap in the face for the families of the almost 3,000 people who died. Well, now Lloyd Austin, the US Defense Secretary, has stepped in to, in effect, reverse that decision of a plea deal, saying that he had removed from the case the military official who oversaw the court at Guantanamo Bay and facilitated the agreement. In a statement, he said, In light of the significance of the decision to enter into pretrial agreements with the accused, responsibility for such a decision should rest with him.

And what that does, this is a very significant reversal. Essentially, what it does is put the death penalty back on the table as a possible punishment for the three men.