it's pril well known they were doing logging on the bluff above the area. that leads to the potential of more water being added to the area and sort of raising the water table, increasing the possibility of slides. so i think just having regulations about logging in the area would be a step forward. that's one thing. all right. well, we wish we had more time to speak with you, with your incredible knowledge based on this, and obviously the ongoing search for survivors, if that is possible at this point. we know that may not be the reality, but thank you so much. we're going to continue to follow this. professor, thank you very much. we do want to get you caught up on another story. it is in boston where a community is mourning two firefighters killed in a devastating apartment building fire. in fact a makeshift memorial is growing in honor of lieutenant