Shakespeare and the Senate Intelligence Committee's Torture Report
Gloucester's enhanced interrogation.
Image from Shakespeare's Staging.
In The Merchant of Venice, Portia alludes to the main reason torture doesn't result in reliable intelligence: torture victims will say what they think their torturers want to hear. Portia tells Bassanio she doesn't trust his protestations of love because "I fear you speak upon the rack, / Where men enforced do speak anything" (3.2.32-33).