The term prolonged interrogation is identified in base64 scheme by the sequence cHJvbG9uZ2VkIGludGVycm9nYXRpb24=, while the MD5 signature is equal to 978dca95d21735dd18361705c5af0158. The ASCII encoding of prolonged interrogation in hexadecimal notation is 70726f6c6f6e67656420696e746572726f676174696f6e.