In one sentence this is why Sarah Palin announced her resignation:
Reflecting on the ongoing imposing costly crossfire and predicament besetting her and her family, being cognizant of her ambition to become more involved in national politics, and finally recognizing the law of physics regarding time and space, Governor Sarah Palin decided to extricate herself and the state of Alaska from being under siege, allowing her more flexibility to reposition herself for a new battle ahead, as she travels in the lower 48 to fulfill her new mission.
Great sentence, techno. I especially like the time/space component. Hawking would be proud. ;-)