I know why its happening.
The One has seen his popularity falling and is trying to improve it (one effort anyway) by embarassing the opposition by making them out to be kooks of one sort or another. Hence the return of the birth controversy.
The bad guys work their evil by framing us, variously, as warmongers, greedheads, crooks, idiots, kooks, or just plain unfashionable. This birth business is just ammo for the other side.
That's my take too.
The "TELL" on this? Press Secty Gibbs taking questions from WND reporter. WND is wasting time asking about this instead of about the culture of corruption that eg Michelle Malkin has documented - firing IGs, Chicago pals in the WH, etc. LOTS of stuff to go after Obama on. If WND wanted to open up on those Qs, Gibbs wouldnt touch him with a 10 foot pole.