<<Anyone purchasing back-to-back tickets who has half a brain is going to do so using different carriers. How does UA plan to sniff those culprits out?>> Actually, mileage loyalty plans make that happen less often than you'd imagine. People are, in fact, mostly half-brained, or believe the carriers to be so. How to sniff those out? Share/merge data with the competition. --------------------------------- Do You Yahoo!? Sign-up for Video Highlights of 2002 FIFA World Cup