 On November 25, two CIA officers, Johnny "Mike" Spann from the highly secretive Special Activities Division, and Dave "Dawson" Tyson, an Uzbek speaker and region expert, arrived at Qala-i-Jangi to carry out prisoner interrogations in the fort's courtyard.The CIA officers questioned selected prisoners, especially one Sulayman al-Faris who was an American citizen born as John Walker Lindh (at the time, they noticed only that Lindh was a European-looking prisoner and different from the others, so he was singled out for an interrogation).Approximately two hours after the interviews began, a number of prisoners, some of them with concealed grenades, suddenly stood up and attacked their captors, who were outnumbered about four to one.