>> the yucca philementosa. >> it does grow in sandy soil. >> you mentioned two -- >> they're the two i know best, and they have been found in archeological sites all over the eastern woodlands. yucca less so, as i understand it. an alternative is the inner bark of the red cedar. although i don't think it has as much tensile strength as the other. i haven't really tested this. if i ever other. i haven't really tested this. if i ever genuinely retire which will be in the next me lynn i m millenia, i want to try it out. >> back row. >> thank you for being here, dr. roundtree, the county shows the only two reservations in the state and i find it very interesting that it once again proves that no good deed goes unpunished, because the natives are what allowed us to survive and history always affects those who write it. thank you. >> when i write a book about indian history, if i cast it from the indians and nonindians, i think i'm probably being accurate. yes, ma'am? >> what is your feeling about the current controversy over whether or not native americans arrived 20,000 years ago and if y