But yes, the TSA is a mockery of actual security, and the general american public is the one being laughed at.
But yes, the TSA is a mockery of actual security, and the general american public is the one being laughed at.
Blowing up a plane/train/stadium/airport security waiting line/etc... is easy. The "real" risk I guess is people using jets full of fuel as flying missiles. However, post-9-11, no passengers will permit that use. Hijacking planes is over.
So the scenario you describe: getting onto a rapidly moving tube of metal with a couple hundred people who haven't gone through metal detectors or x-ray machines is exactly what happens every time I take the train. In fact, the lack of hour long security lines, having to remove my coat, belt, shoes, etc... is one of the reasons I strongly prefer the train.
Get on L'Eurostar at StP and you'll get your bag X-rayed. Get off at GdN and there are soldiers with assault rifles guarding the place.
The least-hassle way to cross a border is usually by sea. It'll just take much longer.
If someone wants to kill lots of people, they'll find a way. There are no metal detectors in a train station, but a bomb on a speeding subway car is just as lethal. There are no metal detectors in the mall, yet it'd be trivially easy for terrorists to fire off a couple shots in a mall and then mow down people with submachine guns at the exits. There used to be no metal detectors in schools, but then some teenagers found out it was trivially easy to kill lots of people there too.
The only reason I can think of why planes are any different is that a plane crash is much more sensational. "300 killed in mall shootout" would make headlines, but it doesn't inspire the same fear as "300 killed in downed airliner", particularly since it's virtually certain you'll die if your plane blows up in midair.
A few dynamite and ball bearing bombs dropped in trash cans in the food court could probably get you into the hundreds pretty quick.
Indeed, the 2008 siege of Mumbai by about 10 terrorists lasted 3 days and brought the city to a halt. Death toll was somewhere near 200, with 300 wounded.
Indeed - http://en.wikipedia.org/wiki/List_of_bombings_during_the_Nor...