take a look at the word of the day, biobutanol. why you need to know it after the short break.t is 52 minutes after the hour. >>> don't know where i'm going. all right. it is 56 minutes after the hour. let's go to the nasdaq marketsite, where carter evans is standing by, keeping an eye on what's going on in u.s. markets and what cnnmoney.com is covering. good morning, carter. what have you got for us? >> the debt ceiling, everyone is still talking about that, on the front page on cnnmoney.com. the big question for a lot of personal investors, what do i do with my money? should i be moving it somewhere else. lawmakers can't come to a decision. is that going to affect my 401(k). most analysts saying don't panic, stay the course. we're talking about earnings this week. shouldn't earnings be the focus right now? >> all right. carter evans at the nasdaq marketsite, let's get back to our word of the day called biobutanol. it's a renewable fuel similar to ethanol made from corn, other crops or biomass. according to curt stayinger and "fast company" magazine it could be the fuel for th