Late night is especially rewarding this days, almost everywhere you turn. Tonight’s guest on The Daily Show is Tom Brokaw, who just hosted a touching prime-time Dateline NBC look at his own battle with cancer – which also is the topic of his latest book. But Stewart might take the time to ask Brokaw about another NBC anchor who, like Brokaw, has been a frequent Daily Show guest over the years: Brian Williams. We’ll see.