Get ready for the geek-in-chief. President-elect Barack Obama used to collect comic books, can't part with his BlackBerry, and once flashed Leonard "Mr. Spock" Nimoy the Vulcan "Live Long and Prosper" sign. That and other evidence has convinced some of Obama's nerdier fans that he'll be the first American president to show distinct signs of geekiness. And that's got them as excited as a Tribble around a Klingon. Obama is good at "repressing his inner geek, but you can tell it's there," especially when he goes into nuanced explanations of technical_matters, said Benjamin Nugent, author of the book "American Nerd:...