Long after the surprise success of AMC's zombie apocalypse series, The Walking Dead, last year, but well before Sunday's 10 p.m. ET launch of Season 2, executive producer Frank Darabont and AMC parted ways, for reasons still unexplained. The question is: Does the new season of Walking Dead still pack the dramatic intensity and ability to shock it did last year, when it racked up an audience more than that of the network's Mad Men and Breaking Bad?...