the most common side effects are nausea, diarrhea, and headache. some side effects can lead to dehydration, which may cause kidney problems. if your pill isn't giving you the control you need ask your doctor about non-insulin victoza®. it's covered by most health plans.

the most common side effects are nausea, diarrhea, and headache. some side effects can lead to dehydration, which may cause kidney problems. if your pill isn't giving you the control you need ask your doctor about non-insulin victoza®. it's covered by most health plans. >>> that, of course, is woody guthrie, "this land is your land." the 1944 recording is among the smithsonian magazine's 101 objects. they selected them from 137 million artifacts resulting in a special edition of the magazine on tuesday. joining us is richard kurren, secretary under history of art and culture. now, that's a title. he's the author of history in america, 101 objects. good morning to you. >> good morning to you. i wonder how you get 137 million items down to 101. >> not easily. and at the smithsonian, they're very passionate about what they're dealing with. everybody wanted their objects in. we get 30 million people a year to the smithsonian. certain objects, they gravitate toward that. i think of "the star-spangled banner." my ons around the country sing it. we have

also, it can make you feel all these different physical symptoms like nausea or dizziness so that, again, it'shd how you want to perform. >> who's most likely to experience test anxiety? >> anybody can have test anxiety, but the most likely students to experience it are ones who either worry a lot about general issues or about academics in particular or kids who like to be perfect and focus on really high grades and doing really well in school. >> how can we tell if we have test anxiety or just had a hard test? >> everybody gets anxious once in awhile, and everybody can get anxious before or during a test, but students with test anxiety get far more anxious than the average student, and they get anxious a lot longer and before the test. so it's a much more extreme form of the normal anxiety that everybody else feels. >> in your opinion, has test anxiety actually increased in recent years? >> i think it has. i think that there's been a lot of focus lately on tests and standardized tests and teaching to the test for teachers, and so when teachers talk about a test and how important it is,