ISTR reading about a hijack
situation where the boss bad guy was visible in the cockpit (aircraft on
the ground) so it was decided to snipe him, but the bullet didn't
penetrate the cockpit window

That wouldn't surprise me at all. Windscreens for airliners have been tested
for years by launching frozen chickens at them from cannon. I wonder if they
still do that.

Dan, U. S. Air Force, retired