geoff: laurie segall, thanks so much for your time and for your insights. ks for having me. geoff: that is our show for tonight. i'm geoff bennett. thanks for spending part of your saturday with us, and we'll see you back here tomorrow. >> major funding for "pbs news weekend" has been provided by -- ♪ and with the ongoing support of these individuals and institutions -- ♪ this program was made possible by the corporation for public broadcasting and by contributions to your pbs station from viewers like you. thank you. ♪ [captioning performed by the national captioning institute, which is responsible for its caption content and accuracy.] nouncer: explore new worldsds and new ids through programs like this, made available for everyone through contributions to your pbs station from viewers like you. thank you. announcer: judy collins, tom and dick, the smothers brothers, the kingston trio, the highwaymen, the brothers four, glenn yarbrough, the limeliters, roger mcguinn, barry mcguire, randy sparks and the minstrels unite for history in a special celebration o