...any credible investigation should include former Vice President Dick Cheney; Mr. Cheney’s chief of staff, David Addington; the former C.I.A. director George Tenet; and John Yoo and Jay Bybee, the Office of Legal Counsel lawyers who drafted what became known as the torture memos. There are many more names that could be considered, including Jose Rodriguez Jr., the C.I.A. official who ordered the destruction of the videotapes; the psychologists who devised the torture regimen; and the C.I.A. employees who carried out that regimen.