What opening a plane door mid-flight would do

[ahlam1399]

http://img-s-msn-com.akamaized.net/tenant/amp/entityid/BBEADj3.img?h=100&w=100&m=6&q=60&o=f&l=fAnd what to do in an emergency situation

أكثر... (http://www.msn.com/en-ca/travel/news/what-opening-a-plane-door-mid-flight-would-do/ar-BBEEFGi?li=AAggpOh&srcref=rss)