Domestic Wi-Fi is now available on nearly all flights within the U.S.
The following URL breaks it down even more by the various airlines:
Sufficient to say, wifi on US flights isn't that uncommon. And unlike you, I've never had wifi on any of my flights over Europe or Asia.
My guess is cost. Sending data via satellite is very expensive, and there's a lot of data recorded. As for ground stations, I'm not aware of any plane-to-ground data communications currently in use (other than radio for voice) so that would need a completely new infrastructure built.
Quoting wikipedia.org's entry on Gogo Inflight Internet,
Air-To-Ground (ATG) Gogo's ATG network is a cellular based network that has more than 160 towers in the continental U.S., Alaska and soon, Canada. The towers are cellphone towers that have been outfitted to point their signals at the sky rather than along the ground. The aircraft picks up the signal through a receiver installed on its underside. When it reaches the aircraft, the data signal is distributed throughout the cabin via a Wi-Fi system.
"Attorneys say it's unlikely confiding in Dana Snay would have jeopardized the settlement — it was the facebook post that did them in."
Presumably the person doing the spoofing would be piloting blind since their GPS would be effected just as much as the target's GPS?
If so then it seems like GPS spoofing would be of limited usefulness unless you just wanted a ship or plane or whatever to get lost and expend all it's fuel in the process.
Five days ago North Korea was moving their missiles and they're only now getting them in firing position? How long does it take to ready a missile? Seems like the US had patriot missiles halfway across the world in South Korea in less time than it's taken the North thus far.
December 12, 2008: Fullest Moon in 15 Years Tonight:
"Love may fail, but courtesy will previal." -- A Kurt Vonnegut fan