By Post Editorial Board – NYPost.com

The Biden administration’s toxic legacy continues to do grave harm to Americans and the national interest; the latest outrage is the renewed likelihood that the 9/11 masterminds will avoid the death penalty.
On Monday, an appeals court tossed Defense Secretary Lloyd Austin’s move to quash plea deals offered to Khalid Sheik Mohammed and co-conspirators Walid bin Attash and Mustafa al-Hawsawi.
Those deals were signed in July by senior defense official and retired Brig.-Gen. Susan Escallier, an Austin appointee to the Office of Military Commissions.