Associated Press: A vigilante hacker, an invasion of Los Angeles and a doctor who gets into a gun battle with gang members are featured in dramas due to appear on a “grittier” USA network within the next year. The general-interest cable network, trying to halt a decline in ratings, revealed programming plans with a marked shift away from the lighter procedural fare of “Monk,” “Psych” and “Burn Notice” of a few years back.