and this is funny to say as an operator myself, but we definitely need government regulation of commercial operators on the mountain. we need to require certain levels of experience and safe measures, things like communication and oxygen supplies, and if a company can't provide those, they can't operate on the mountain. >> aidian ballinger, thank you so much. you're there and we appreciate it. so sorry again that we've had to see these deaths. thank you, adrianne. >> absolutely. thank you so much. >> pretty remarkable to hear from him right there at the base camp. ahead fours, a hiker lost for 17 days a. she is found after officials call off the search. her amazing story of survival is next. plus, get this.