Safety:
All the times I've been in Europe, I've never had a problem, and never felt justifiably unsafe. However it's still wise to follow some basic safety precautions.
- Use your common sense. If you get a bad feeling from a place or a person, leave.
- Stay Alert! Pay attention to your surroundings at all times, don't stand on the corner of the street staring intently at your tourist map, you're just asking to be pickpocketed.
- Stay in control of yourself. As good as European beer is, don't drink too much of it, especially if you're walking home alone. Staying away from too much alcohol and illicit drugs is a good way to keep yourself out of a police station
- Try to blend in. It'll be tough wearing a huge pack, but try to at least try your best. Be sure not to wear conspicuous clothing or jewelry and do not carry excessive amounts of money. Put a little in your wallet, some more in your money belt, the rest in the bank.
- If you're going to be in one country for longer than a month, consider registering with your Embassy.
- Wear a money belt and put most of your valuables in it. That way, if your wallet gets lifted, you're only out a day's worth of cash, not all your money, your passport, your Rail Pass and your dignity.
Be sure to check for any travel warnings from your embassy before you leave.
Travel Warnings and Other Useful Sites:
International Travel Safety Information for Students -- Has a lot of good information related to international travel for students. Give it a quick read before your trip.
Prohibited Items in Aircraft Cabins -- TSA's list of prohibited items.
About.com's Student Travel Safety Section -- Has some good tips on how to stash money your goods and keep yourself out of harm's way.

