Mouth gave an excellent explanation on the brown vs. black bear deal.
It's never bothered me to stay in a tent in bear country. Keep in mind, from inside the tent, it's night time, very SUDDEN (most victims are already being pulled out of the tent when they realize what is happening), and you probably won't have a chance to grab the gun anyway. With that in mind, follow common sense rules.
Random attacks certainly occur, but I can almost guarantee that there were some type of attractant. It doesn't always have to be food. Examples----someone left trash in the campsite within the previous week but bear cleans it up so campsite appears clean (main factor in 2 of my attacks--always look under rocks and logs for hidden trash, check any bear scat for human based trash), the person isolated their tent in some capacity, they are sleeping in the same clothes they wore that day (BIG one in one of my attacks--you could see the chocolate stain on the shirt), are into winter camping and cook in the vestibule portion of the tent then take said tent into bear country (contributing factor in a couple Canadian attacks), using strawberry scented shampoo before going to bed (got a scalp removed), brushing your teeth right before jumping in the sleeping bag (dude woke up to bear sniffing face just prior to getting face bit), having a contact lense case with saline solution sitting next to your head (the LOVE salt), drunks that have puked on their sleeping bags and half a--ed cleaned it (I've used puke for bait, not kidding), and I'm sure you will love this--flavored lubricants (was a factor in a minor attack in a NP a couple years ago)---Citronella insect repellent is a favorite curiosity instigator----applying raspberry chapstick before going to sleep (another factor in one of my attacks.---burning the trash thinking you got rid of the smell
Usually, these types of things may pop up in the eventual final report, but you will rarely see it get reported. Since food is the most obvious, and the biggest reward to insure future problems, those are the first mentioned.
So it doesn't bother me, but I am really picky. Quite frankly, when I look at many campgrounds, it freaks me out some times. Most folks think of food (which of course is probably the best reward), but there are so many other things that can get their attention (love chewing on a roll of duct tape for example).
I would love to see diagrams of the campsites (layout, relationship to other campsites, relationship of sleeping area to where food was stored), and photos from around the campsites.
[This message has been edited by ursusguy (edited 7/30/2010 11:30p).]