Tunnel wired for explosion

[twiceblessed9]

Based on the tunnel, I wonder, do you have a feeling the explosion was to disrupt a music festival up in the mountains and if so was it classical or a different type? I ask because I have spent a great deal of time in the Vail Valley over the years and when I think of Colorado music in the summer, I think Vail Bravo or many of the free summer concert nights in the area. Also Aspen has many as well. A bombing of that tunnel would be catastrophic for the region as a detour would take HOURS and HOURS. I can't even imagine...