A reader writes:
I am a physician and absolutely do not believe the Palin account of Trig's delivery story. But I am also a woman, and your shock that if she would lie about this is simply a man's perspective. Women lie about pregnancy/birth/parentage all the time. Women withhold the truth when they get abortions and don't tell the potential father. Women have babies and lie about who the father really is even when they know. So what seems like a terrible lie to you doesn't even come close to lies women tell on this subject. This is why I think you overstep on the Trig issue.
The lie about Trig likely came about to feed her ego that she is a hero; she is a martyr for even having him. But I, and I suspect other women, see this as an intrusion. So even if you prove what is likely true - that she is lying - it is neither unique nor crazy.