'Natchez Burning' author Greg Iles discusses the JFK subplot of his new book.

The best-selling author tells the Christian Science Monitor how he weaves the JFK story into his new novel  'The Bone Tree,' while trying to hew to historical fact.

"In a general way, I would say that the basic thesis of what I’m putting forth is, if Oswald did not act alone, then I would say there’s a 95% chance that a conspiracy of the size and type th…