Listener David wrote: “If the uninterrupted drives have been successful, why do you do these [Fall pledge drives]?” It’s a good question, and one that we have examined in depth. We’re been very pleased with the success of our summer “Stealth” drives. We think listeners appreciate the fact that over the years we have reduced the number of fundraising days from 26 down to 15. But the Summer drive is different from Fall or Spring in that the goal is so much lower — typically, less than half of the big ones. Still, it took three weeks of fairly intense messages, several per hour in the last few days, to reach those goals. We don’t think our listeners would be in favor of a Fall drive that took six weeks of messages, even if none disrupts regular programming.