This isn't school related, but it shows the basic fearmongering tactics that are being used by our government against us.
I bought a car on eBay in early 2002, not long after 9/11, for $132.50 and it was located about 900 miles away. I figured, it's gotta be a piece of *censored*, so I'm going to bring my tools. Bought a bus ticket and got in line to get on the bus. Homeland Security was searching everyone's carryon and stored luggage. Of course I had my trusty $20 Wal-Mart Road Emergency tool kit. Wrenches, pliers, screwdriver bits, a bit driver, 3/8" ratchet set, rubber mallet, tire pressure gauge, coolant tester, small utility knife (with the little break off pieces), and a circuit tester (light bulb and a fuse in a stick with a very sharp end). By the time Homeland Security was done with my toolkit, I had a pair of pliers, the screwdriver bits (but no bit driver), the tire pressure gauge, and the empty plastic case. I was not offered the opportunity to go toss the tools in my other car. I was not permitted to leave the premises. I was not given the chance to leave my tools at the Dallas Greyhound in a locker to get them when I returned. All in all, my $20 tool kit cost me $40 because I had to buy another one when I got to Indiana.
No one mentioned anything about not being able to have hand tools in checked luggage when I bought the ticket. They just ASSUMED I was not carrying anything that could be used as an improvised weapon, provided I could access the bag under fifty other bags in a moving bus at highway speed with no interior access to the stowed luggage compartment.