Early in Leonardo DiCaprio’s Before the Flood, which aired Sunday night on the National Geographic Channel, we see a clip of DiCaprio speaking before the U.N. General Assembly, saying, “I stand before you not as an expert.” That’s the most credible line in the movie. And the least credible may be one that follows almost immediately: “I want to do everything I can to learn more about this issue.” If he’d really meant that, he might have gone to the trouble to speak to some of the … [Read more...]