The latest release brings the total number of men detained at Guantanamo to 15. It held approximately 800 at its peak.
The plea agreements would spare Khalid Sheikh Mohammed and two co-defendants the risk of the death penalty in exchange for guilty pleas.
Officials sent information to more than 650,000 veterans ahead of the storm's possible landfall.
Three Americans died when about three dozen al-Shabaab militants raided the U.S. compound at Manda Bay, Kenya, in 2020.
