GUANTANAMO BAY, Cuba -- At a pretrial hearing in the case against the accused mastermind of the USS Cole bombing, a former Army interrogator -- nicknamed the "King of Torture" -- said he subjected a prisoner held at Bagram prison in Afghanistan to days of sleep deprivation and stress positions. But prosecutors argued Friday that the treatment of the prisoner did not meet the legal threshold for torture. The United States accuses Abd al-Rahim al-Nashiri, a Saudi Arabian citizen, of being the