For two days, the chorus from Republicans on TV news and in the halls of the convention has been resounding: Back off and let the Palin family be. “That's out of bounds,” said Minnesota's Republican governor, Tim Pawlenty. “There's no need to be intrusive and pry into that.”

Yet Wednesday found the following scenes unfolding:

 Sarah Palin's pregnant, unmarried 17-year-old daughter and probable future son-in-law stood in a nationally televised, politically packaged airport receiving line to meet and greet the Republican candidate for president.

 The extremely cute and bubbly Piper Palin, 7, made her debut on her mother's behalf, appearing in a video on John McCain's daughter's blog. “Vote for my mommy and John McCain,” she said, giggling as Meghan McCain grinned.

 Bristol Palin and her 18-year-old boyfriend, Levi Johnston, were expected to appear together as part of the GOP political narrative at the convention Wednesday night, according to the young man's mother.

Huh? The Republican message about the Palin offspring comes across as contradictory: Hey, media, leave those kids alone – so we can use them as we see fit.

If you doubt this scenario, consider this: On Wednesday morning, a teenage boy from Alaska stood in a receiving line on an airport tarmac, being glad-handed by the potential next president of the United States – because he got his girlfriend pregnant. TV cameras were lined up in advance. The mind boggles.

“Either the children are out of bounds, and you don't put them in the photo ops, or you complain when somebody wants to talk about them. You can't have it both ways,” said John Matviko, a professor at West Liberty State College in West Virginia and editor of “The American President in Popular Culture.”

“Right now, it looks like they're being used by the campaign more than the media are using them,” he said.

Though candidates for national office, and those close to them, are under more intense scrutiny than ever before in the American information culture, there is more to this situation than simple celebrity chasing.

These are two young people figuring out how to get through a difficult personal situation. Under normal circumstances, they would be allowed to do so unbothered by global scrutiny. Talk about a teenager's worst nightmare.

But one big obstacle stands in their way: Sarah Palin.

Yes, she has asked the media to “respect our daughter and Levi's privacy as has always been the tradition.” Yet Palin has packaged herself as a PTA member and “hockey mom” – culturally loaded terms calibrated to evoke appealing images of middle America, the middle class, exurbia and strong 21st-century family values.

Using one's family as an accessory in the political arena, however, can have its pitfalls. Candidates open themselves to charges of hypocrisy if they demand the ability to boast but reject the attention that can ensue when the road gets rougher.

Barack Obama said flatly that the Palin kids should be “off limits,” but he has engaged in the same thing – though to a much lesser extent.

In July, he and wife Michelle appeared on a four-part “Access Hollywood” interview with daughters Malia, 10, and Sasha, 7. Obama later expressed regret about his decision to put them forward, saying, “I don't think it's healthy, and it's something that we'll be avoiding in the future.”

Nevertheless, the Obama girls appeared on stage twice at the Democratic National Convention last week – once to talk to their father via video hookup after their mother's speech, and again after Obama accepted the nomination during the convention's climactic moment.

Let's remember one thing, though: Behind all the political machines and maneuverings, these contenders for the country's highest office are human beings and parents. And a parent is no more infallible than a candidate.

On her blog Monday, Meghan McCain expressed solidarity with the Palin kids, saying she understood the things they were grappling with. “It's a rough go being the son or daughter of a politician,” she wrote. “You can't fully understand it unless you have lived it.”

The road is bumpy for sure, and the media probably aren't helping. Sadly, though, the candidates themselves aren't doing much to make things better, either.

  

EDITOR'S NOTE – Ted Anthony covers American culture and politics for The Associated Press. Comments about Measure of a Nation can be sent to measure@ap.org.