"It is hardly unusual for a teenage girl to become pregnant, and unless she is Jamie Lynn Spears, who sold her baby pictures to OK! magazine, the news value is minimal. But some media commentators say Palin is fair game, not just because she is running for national office but because she is a self-described 'hockey mom' who told the nation that her eldest son is headed to Iraq.
'Once she's brought her children in as selling points, unfortunately the bad comes in with the good,' says Lisa Bloom, a Court TV anchor. 'She's integrating her mom quality as a key part of her résumé. We didn't do that in the press; she did that.'"
According to that logic, the fact that Obama let an interview of his family be released, it's A-OK to gossip about his family.