Dr. Michael Frachetti, professor of archaeology at Washington University, St. Louis, is the guest for "ROI" episode #597 to discuss, "Lost Silk Road Cities Discovered With Goundbreaking Tech."

The host for this episode, the first in the "Relevant Or Irrelevant" 18th season, is Jay Swords, and the history buffs are Brett Monnard and Ed Broders.

Opinions expressed in this program are those of the hosts and the guest(s), and not necessarily those of KALA-FM or St. Ambrose University. This program is recorded at KALA-FM, St. Ambrose University, Davenport, Iowa, USA!