The draft board raids were part of an antiwar movement, largely grounded in Catholic religious convictions, that spanned almost four years. Part one covers the basic context of the Vietnam War and why the U.S. was involved in the first place, and the earliest raids on draft boards.
Research:

Behind the Scenes Minis: Carry-on Bags
28:38

Gustave Flaubert and the ‘Madame Bovary’ Trial
45:15

Elizabeth Bisland, Beyond the Trip Around the World
42:54