Fox News reports that an AWOL soldier has been taken into custody at Fort Hood, the Texas military base where Major Nidal Hasan killed 13 people in a shooting rampage in November 2009. (Hasan now faces the death penalty.) "At least one U.S. military serviceman has been arrested for allegedly planning another attack on Ft. Hood," Fox reports. "He was not captured on base. According to another source, two other U.S. soldiers were also arrested earlier today when they were found in possession of weapons and explosives." 

Update: CNN reports that the AWOL soldier arrested in Killeen, Texas was Pfc. Naser Abdo, who was charged with child pornography possession earlier this month. A phone call from a gun shop owner reportedly tipped off police:

Killeen police received a call from a gun shop owner about a suspicious man in the store who was asking questions about 40-caliber ammunition and then bought three boxes of 12-gauge ammunition and a magazine for a pistol, the defense official said.