Joe Hagan shares some wisdom from Tom Brokaw: "For all of the complaints about Fox, cable-news feeding frenzies, reality overload, remember this: There's also Discovery, History, the Beeb, more Sunday talk, Lehrer, Frontline, C-Span, etc. The viewer also has a role. Remote controls have channel selection and off-on switches." Brokaw is departing this week for Afghanistan, Pakistan and Saudi Arabia, to work on a documentary...