i remember years ago in connecticut when they had a similar program for inner city kids. on one memorable outing they took a bunch of kids to hammonassett state park which is a state beach on long island sound. they then let the kids wade in the surf. the unfortunate part is, the people who ran the program didn't know the bluefish were running. bluefish are large, tasty fish that travel in large schools and eat, eat, eat. they also have nasty teeth.
when the kids started yelling and running out of the water they found out about the teeth part. the program leaders had unwittingly "chummed" for blues with inner city kids.
oopsy.

when i was a kid in the '70's we used to prank all the time.
once i even cleared out the entire cafeteria of a catholic high school with about 8 drops of reagent grade ammonium sulfide solution i swiped from the chem lab where i volunteered to help "clean up" after labs. i laughed myself silly after the stampede wth the gym coach yelling "i'll kill whoever put the fart juice in here"
nowadays i'd be arrested as a terrorist and charged with a felony.
heck,....i wasn't a bad kid either, and didn't turn into a terrorist or a serial killer or anything like it.
lots of kids pranked.
ever wonder why kids are so pissed today? they're so constrained and reined in and bottled up they simmer and cook until they blow their tops.
school admins shouldn't sweat the small stuff.

in the article you state:
"The thing is that when they say that you can't travel than fast than the speed of light, they're talking about the fundamental principles of physics: it's impossible to get beyond lightspeed, even if science fiction movies help us conceptualise it."

this is not true.

what is forbidden is accelerating objects or particles that exhibit *non relativistic or "at rest" mass"* to exactly lightspeed. the problem is, as the object has a rest mass it also acquires a relativistic mass as it approaches lightspeed. the closer to lightspeed it gets the heavier it gets...in essense to accelerate an object with a rest mass to lightspeed takes an infinite amount of energy due to the fact that the object's relativistic mass would be infinite also at lightspeed.

oddly enough though, there are serious academic attempts to circumvent einsteins special relativity constrictions barring ftl travel:
http://en.wikipedia.org/wiki/Faster-than-light

the jury is still out.