When Crosby, Stills, Nash and Young tore into “Let’s Impeach the President” in Atlanta in August 2006, they faced an overwhelming chorus of boos and raised middle fingers. The band seemed calm onstage, but today Neil Young says he feared for his safety throughout the ­entire Freedom of Speech Tour.

“I was a nervous wreck by the end of that thing,” he says. “We had to deal with death threats and bomb-sniffing dogs the whole time.” The Atlanta concert is a pivotal scene in CSNY Déjà Vu, a documentary chronicling the tour, directed by Bernard Shakey (a.k.a. Young), which premiered at Sundance. Click here for an interview with Young in which he discusses the documentary, the presidential election and his plans for the future.

Related Stories:

• Sundance Preview: CSNY, U2 Lead Pack of Movies That Rock
• New Music Tuesdays: Neil Young’s “Chrome Dreams II”
• Neil Young Journeys Through the Past at Idaho Tour Kick-Off