Visit NBCNews.com for breaking news, world news, and news about the economy Watch and listen carefully. Rachel Maddow lays out exactly what we're up against in this "fight against ISIS" that, per new polls, Americans have started to support. But ISIS has anti-aircraft artillery. The group upon which we're dropping bombs inside Iraq? They have anti-aircraft weapons. That means pilots and crews who are dropping bombs are at risk. P.S. and by the way, this is not being called "combat," yet pilots and crews fighting ISIS can be shot down. Rachel: So politically, it may be very convenient to say [...]