"If I cared what commenters said, I'd kill myself." In the high-octane non-stop flame war that is the political blogosphere, Markos Moulitsas Zuniga knows how to get attention. He's kidding, of course. We're talking about the rhetorical excesses that can spill out of the impassioned debate that takes place on his creation, DailyKos.com, the world's most popular political blog. Compact and wiry, Moulitsas, 34, exudes quivering intensity. He speaks in staccato paragraphs, punctuated by intense stares and a raised eyebrow. His eyes bulge slightly outward, as if reacting to the pressure of all the ideas inside his head. Many of...