GUYS IN PAJAMAS: You'd think that a group as obsessed with the Vietnam War as the mainstream media appears to be these days would think twice before describing the blogosphere as a bunch of guys in their pajamas. For those of you born after 1975, Vietnam was where the United States lost a war to guys in unstylish black pajamas. Strange that no one seems to have pointed that out, what with one of the presidential candidates pretending that 1969 was only yesterday. But I guess when it's your institutional ox on the wrong end of the goring you are apt to miss these little historical ironies.