Three elementary schools in the Anchorage municipality have been put on the chopping block to close at the end of this year, according to the district’s latest update. Plus, new pictures released Thursday show deteriorating conditions inside Mt. Edgecumbe High School in Sitka, and state lawmakers are questioning why. And, as federal investigators work to determine the probable cause of a Bering Air crash that killed 10 last year, the case is shedding light on the intricate web of factors that can lead to regional aviation disasters in Alaska.