CHICAGO (AP) — Annoyance at security hassles has been on the rise among airline crews and passengers for years, but the widespread use of full-body image detectors this year and the simultaneous introduction of more intrusive pat-downs seems to have ramped up the frustration.

As passengers have simmered over being forced to choose scans by full-body image detectors or rigorous pat-downs inspections, some airline pilots are pushing back.

Much of the criticism is directed at the Transportation Security Administration.

The scanners show a body’s contours on a computer stationed in a private room removed from the security checkpoints.

A person’s face is never shown and the person’s identity is supposedly not known to the screener reviewing the images. Under TSA rules, those who decline must submit to pat-downs that include checks of the inside of travelers’ thighs and buttocks.

Top federal officials said Monday that the procedures are safe and necessary sacrifices to ward off terror attacks.

“It’s all about security,” Homeland Security Secretary Janet Napolitano said.

“It’s all about everybody recognizing their role.”

That’s not how John Tyner sees it.

The software engineer posted an Internet blog item over the weekend saying he had been ejected from the San Diego airport after being threatened with a fine and lawsuit for refusing a groin check after turning down a full-body scan.

He said he told one federal TSA worker, “If you touch my junk, I’m gonna have you arrested.”

“I told the person that being molested should not be a condition of getting on a flight,” the 31-year-old said in a phone interview Monday.

Tyner, who was eventually told he could not fly at all because he refused both modes of search, captured the incident on his cell phone.

“This is not considered a sexual assault,” a supervisor can be heard telling him.

 “It would be if you were not the government,” replies Tyner.

Many pilots say requiring them to go through security is ridiculous.

Walsh argued that it sends a disturbing message to passengers for them to see pilots being searched.

Capt. John Prater, head of the Air Line Pilots Association, noted pilots are already subject to FBI background checks. Prater said that based on discussions with TSA officials Monday he was hopeful the agency will soon approve a “crew pass” system that would allow flight attendants and pilots to undergo less stringent screenings.

Some pilots also are concerned about possible health risks from low-level radiation emitted by the body machines.

Sullenberger, who recently retired, said pilots are exposed to more radiation because they fly at altitudes where the atmosphere doesn’t fully block harmful rays.

“So, for those of us who are already exposed to many times more radiation than those who work on the ground, it is of concern to us that we are exposed even in small amounts to additional, what we consider unnecessary radiation exposure,” he said.

Sullenberger said he hasn’t heard of studies addressing those potential health risks, but he said, “Absent the data, I think we need to err on the side of caution.”

Not all passengers share the level of ire of Tyner, whose individual protest quickly became a web sensation over the weekend.

• Michael Tarm