Please review the video below:
I can post more videos of helicopters flying over erupting volcanoes if you want.
You may also want to consider that helicopters are a rather handy way for vulcanologists to get to and from an active volcano for study.
Yep. It's a possibility, and if you really want to believe in aliens, you can just shorten their name and call them Vulcans.
Something else to consider regarding no-fly-zones, There's TYPES of no-fly-zones.
I'm sure if you were to take a peek at whatever Federal Air Traffic regulatory rule set is applicable for the area, you may find there are waivers and exceptions and classifications for and of no-fly-zones.
edit on 3-5-2012 by Druscilla because: (no reason given)