Good article (thanks to fatbob at Snowheads for this) on Decision making and group think that led to three deaths in an avalanche last spring.

What started as a glorious powder day ended in a desperate fight for survival after three skiers were buried by a killer avalanche in the backcountry of Stevens Pass, in Washington’s Cascades. Megan Michelson lived to tell about it, but she can’t shake off a haunting question: How did a group of expert skiers make such a deadly mistake?

http://www.outsideonline.com/outdoor-adventure/snow-sports/Tunnel-Vision-November-2012.html?page=10