From Episode 158: Firefighters go to work as a folksy song about their job plays in the background. (This clip originally aired in Episode 131, the Season 2 premiere.)

A film by Neil Young

The war in Iraq is the backdrop as the Crosby, Stills, Nash, and Young "Freedom of Speech Tour" crisscrosses North America. Echoes of Vietnam-era anti-war sentiment abound   more...as the band connects with today's audiences.
WP Article: http://www.washingtonpost.com/wp-dyn/content/article/2008/06/25/AR2008062500116.html

Reuters Article: http://www.reuters.com/article/entertainmentNews/idUSN2538558920080625?sp=true

Bill Board: http://www.billboard.com/bbcom/news/article_display.jsp?vnu_content_id=1003820211

Bill Board Q&A with Neil Young: http://www.billboard.com/bbcom/news/article_display.jsp?vnu_content_id=1003820107  less