Because if HSR captures enough ridership to be successful, it's going to need exactly the same kind of security, because it's vulnerable to all the same threats.
False. The security concerns for passenger rail (high speed or otherwise) are almost totally different than air travel. The primary risk to an airliner is from someone or something inside the aircraft, while the main risks to a train are found on the ground and in terminals, not onboard.
You cannot hijack a train like you can an airliner - there's (generally) no way to get to the locomotive from the passenger cars, for one thing, and I'm not sure what someone would expect to do once they got there. Unlike an airliner, you are not trapped onboard miles in the sky; The train can stop anywhere in an emergency. A relatively small, easily concealed explosive device may bring down a 747 but might not even be powerful enough to derail the train (terrorist acts on European train are at best an apples-oranges comparison, given the much greater weight of U.S. designs) or cause injury outside that one car. While someone could potentially get a weapon on a train, they could do so even easier at your local Wal-Mart or movie theater. You can't have high security everywhere, all the time, nor are the risks the same among different modes of transportation.
Nothing about this route worked towards the viability of high speed rail. The population is not there. The traffic is not there. The distance is not there. If you are so concerned about waste then you would not support a rail system for its "cool" factor. You do not fight oil dependence with a train that is not in a viable alternative.
I never thought I would be opposing a rail project, but despite the importance and potential of passenger rail of all types, this project was ill-conceived and very much the wrong project in the wrong place.
The problem with this project is
not that it shouldn't be built - because the central Florida region very badly needs greater passenger rail development - but that it absolutely
should not be built as currently proposed as a "high-speed" railroad. HSR for the 21 miles from the airport to WDW is ludicrous. A modern light-rail system could be implemented for a fraction of the cost and is what Orlando really needs. It could even be tied into a potential Tampa light-rail network, again at far lower cost and greater utility.
If you want to do a higher-speed (say, 110 mph) Orlando to Tampa passenger railroad, then incrementally improve the existing CSX line to permit faster and more frequent trains (partially Sun Rail territory anyway), with ongoing improvements when ridership builds or if demand warrants. There is no way the currently proposed project would have met its ridership goals, and when it was therefore branded a failure (it wouldn't be profitable either - no passenger railway exists without an operating subsidy) it would have set back passenger rail development across the nation by decades.