The airplane ride is still the safest part of your journey. If you're flying over the continental U.S. in a U.S. flag carrier, the odds of not making it to your destination safely are simply not worth considering seriously. Also, if your regularly scheduled airline flight does go down, help will be on the way. You will not be stranded anywhere for any signficant time.<br><br>Chris K. is absolutely correct: you're more likely to need your PSK at your destination, not on your way there.