'Battle Lines' graphic novel shows Civil War through panes of history

When the authors of "Battle Lines," a new graphic history of the Civil War began their project, they couldn't know that the symbol of that war—the Confederate flag—would be so painfully relevant again.

But the first chapter is titled "The Flag" and features drawings of the removal of the Union flag from Fort Sumter and the raising of the Confederate flag.

Ari Kelman and Jonathan Fetter-Vorm joined MPR News' Kerri Miller to talk about their new book.