It's bad enough that US airports engage in security theater that seldom makes you safer. However, it's made that much worse by the delays -- having to wait for agents to X-ray your bags is frustrating when you're desperate to get to your gate. American Airlines and the Transportation Security Administration aren't deaf to your complaints, though. They're partnering on a trial this fall for automatic screening technology that should be both more effective and save about 30 percent of your precious time in line. Among the improvements are automatic conveyor belts, a way of isolating risky bags without disrupting the queue, RIFD tags for bins and cameras that link outside photos of a bag to its X-ray.