Richard Shelby was for lie detector tests until he was asked to take one. Read The National Journal's account of Shelby leaking NSA intercepts to two reporters that triggered a fifteen month investigation right after 9/11.
"A sharp disagreement ensued between the FBI and senior Justice Department officials overseeing the case, according to federal law enforcement officials. The FBI was convinced not only that Shelby leaked the information regarding the intercepts, but also that the senator might have misled the FBI when he was interviewed about his actions, according to sources. They advocated that Shelby be prosecuted."
Up until this case, Shelby just loved the lie detector test:
"Some of those who have promoted polygraphs in the past have changed their tune when faced with the prospect of taking a lie detector test themselves. In August, several members of the House and Senate intelligence committees refused to submit to polygraphs as part of an FBI investigation of who leaked classified information regarding the September 11 attacks. "I don't know who among us would take a lie detector test," says Senator Richard Shelby (R-Ala.). "They're not even admissible in court." Shelby's reticence was an about-face from his stance two years ago, when he spearheaded the expansion of the Department of Energy's polygraph program as the only effective way of tracking down moles."
If it's just fine for Porter Goss to administer lie detector tests to his employee's for leaking classified information then why not make Shelby take one since he was for them until he got in trouble? What say you Sen. Shelby?