. >> pelley: howard schultz, founder and chief executive officer of starbucks, thank you very much. >> thank you, scott, very much. thank you. >> pelley: if a child has autism, what are the chances that a sibling will develop it, too? we'll have a new study. the search for an american abducted in pakistan. and the deadly stage collapse in indianapolis-- what it preventable? when the "cbs evening news" continues. what it preventable? when the "cbs evening news" continues. [ male announcer ] this is coach parker... whose non-stop day starts with back pain... and a choice. take advil now and maybe up to four in a day. or choose aleve and two pills for a day free of pain. way to go, coach. ♪ of these abandoned racetracks in america today. automotive performance is gone. and all we have left are fallen leaves and broken dreams and -- oh. wait a second. that is a dodge durango. looks like american performance is doing just fine. ♪ carry on. ♪ i am gonna amy vet thinks i see you're flatulent in three languages. graduated top of your gas. [ male announcer ] got gas on your mind? your son rip is on line toot. [