It's been a half-century since the birth of the internet. The Agenda looks at the overwhelming changes the technology has created. Then, former Canadian senator Hugh Segal speaks with Steve Paikin about his memoir "Bootstraps Need Boots: One Tory's Lonely Fight to End Poverty in Canada."

The Agenda's annual music show focuses on the friendship between singers Edith Piaf and Marlene Dietrich, the topic of a theatre production; Tafelmusik's new music director, and a unique blend of baroque, classical, folk, and contemporary music.