Videoconferencing for freedom and family

Recently read about how videoconferencing is being marketed to immigrants so that they can see their families back home that they haven't seen for, oh, say, 8 years. Great idea.

But what about terrorism? Couldn't Al Qaeda use these same video links to exchange top secret coded messages about destroying freedom and democracy? Shouldn't we send in thick necked types to monitor these transmissions? Surely the CIA and/or FBI will have trained multilingual professionals analyzing all video traffic and sniffing around. Otherwise they will have failed in their duty to secure the homeland, right? Or maybe we're better off leaving videoconferencing in the hands of trained executives.