. >>> this is "nightly business report" with tyler matheson and sue herera. >>> high stakes. stocks dropped to start the second quarter as investors recalibrate ahead of a flood of market-moving events. >>> tapping the brakes. auto sales low in march leaving some to wonder if the recent boom is coming to an end. >>> factory of the future, what some of the biggest companies in the world are doing to bring their workers into the 21st century. those stories and more tonight for "nightly business report" for monday, april 3rd. >>> good evening, everyone. welcome. investors were not in a buying mood on this first day of the second quarter. stocks were slipping and sliding. as some economic data came in weaker than expected. as one wall street watcher put it, investors want to see an evidence of an improving economy in order to rely less on government policies. today the dow jones industrial average was off 13 points to 20,650. the nasdaq dropped 17 and the s&p 500 lost 3. and another key events over the next few days and weeks could determine direction of stocks. dominic chu expla