This week's guest on What Doesn't Kill You hiked 1,700 miles along the proposed Keystone XL route. Yes, actually! Ken Ilgunas started in Denver, hitchhiked across the Canadian border, took a flight over the Tar Sands of Alberta, and commenced his walk in Hardisty, AB, the northern terminus of the soon-to-be pipeline. The journey was documented in the recently published "Trespassing Across America: One Man's Epic, Never-Done-Before (and Sort of Illegal) Hike Across the Heartland". He and Katy chat about the long journey, the trials and tribulations Ken experienced along the way and the realities facing the areas along this route.