With the 50th anniversary of JFK’s assassination approaching, there will be lots of TV shows related to the subject in the next two weeks. One that I’m looking forward to is “Cold Case JFK,” which will air Wednesday night as part of the Nova series on PBS. In it, forensic scientist Lucien Haag uses modern techniques and equipment to check the physical evidence of the crime to see what really happened, and in the process confirms and debunks many of the theories that have been floating around for the last half-century.

Haag joined me on America Weekend to preview the show, discussing what’s changed in forensic capabilities since 1963, where and how he did his testing, what he discovered, and whether he thinks he’ll change the minds of conspiracy theorists. Listen to our conversation here.