they always seem to announce on the airlines, on the pre-flight safety notice, that you should switch off cell phones and electronic devices cause they might interfere with the communications systems. I always wonder.... IF that is true, then why don't we see more people trying to hijack planes by saying "if you don't fly me to (insert place hijackers would want to go) right now... I will turn on my cell phone. Or, why don't they confiscate cell phones?