Call it the showdown at the whole-body imaging machine.

Depending on who you believe, the Transportation Security Administration at Salt Lake City International Airport was either harassing Rep. Jason Chaffetz, R-Utah, for fighting its use of "strip-search" machines or Chaffetz was being obnoxious.

"I'm sure they're not my biggest fans," said Chaffetz, who voted against allowing the TSA to form a union. "They're just harassing me."

Chaffetz gives his version of how the incident started.

"They told me to go to the far left (metal detector) lane, which is fine. There is one whole-body imaging machine, which is lane No. 2, the second one from the left," he said.

He said he sent four gray bins of personal items through the X-ray machine. "Two of them went through, and then they said, 'We need you to go through the whole-body machine….' I said, 'I'm sorry but I'm not going to do that.' "

Chaffetz has passed through the House — but not yet in the Senate — legislation saying such machines could be used only for secondary searches, and people may opt for a "pat-down" search instead because the machines essentially show the people as naked.

Chaffetz had told the House, "You don't have to look at my wife and 8-year-old daughter naked to secure an airplane." He says he didn't want the TSA looking at him naked either. He told the Deseret News the TSA has not lived up to promises to post signs about what the whole-body imaging machine does.

Chaffetz says he told a TSA officer, "'I know what that machine does, and I don't have to go through that machine.' That led to a whole series of questions … all kinds of questions about suspicions."

He adds, "I refused to go through." He said he was eventually put back in line for a regular machine, and told to go through it instead. "It didn't go off. And then they said, 'Well, you've randomly been selected to go through a pat-down."

He said, "I got in that lane and waited, and the guys came and gave me a full-body pat-down." When he was finally cleared to go, Chaffetz said he asked to talk to a supervisor.

"The guy said, 'Why?' I said because that's not what should happen here," Chaffetz said. He adds that he started to identify himself as a congressman, and before he did he said the officer said, "We know exactly who you are. I thought, 'My gosh, those guys are just harassing me.' "

Chaffetz said he believes that is because he has fought the whole-body imaging that the TSA has proposed to use more, and because "last week I voted in committee against their ability to form a union … it still passed."