Hal, the show on Sunday night disproved the fact that great whites only breach off of South Africa. A South African research scientist accompanied expeditions off of the coasts of California and Australia where sharks are rarely if ever seen coming out of the water. Trollling a very realistic seal decoy on top brought some whites out of the water in both locations, much to the disbelief of the local scientists. Apparently it's a hard-wired instinct in these animals to take advantage of an easy target overhead.
The show was called "Air Jaws II". It should be repeated at some point during the next few months and is definitely worth the time to watch.