"Protest" is the sixteenth episode of the second season of Numb3rs.
The bombing of a recruitment office puts Don and his father at odds over ends and means, and brings an agent out of retirement. Don is forced to question his path in life, as his future with the Bureau seems less than certain.
Trivia
The book "Essays on Revolution" on the episode was shown at the end of the episode and the cover says that the book was written by Cheryl Heuton and Nicolas Falacci, the two creators of the show.
Judd Hirsch's character, Alan Eppes, is revealed to have a history of protesting the Vietnam war, for which the FBI have a case file on him. Hirsch's character in Running on Empty (1988) had a similar history: in that film, his character Arthur Pope and his wife Annie, who also have two sons, are fugitives wanted by the FBI for a Vietnam War protest bombing. That film was based on the 1970 bombing of Sterling hall at the University of Wisconsin; is this episode, the character Matt Stirling is a suspected bomber and fugitive.
Crazy Credits
[This appears on the beginning of the episode] 5,000,000 Vietnamese killed 58,226 US troops KIA 3,000 bombings 0 arrests