Speaking of the statistics from page 1 and how they are incidental unless you are the one being attacked, a quick internet search turned up more hunters being injured and killed each year (on average) in plane crashes in and out of hunting areas than being injured or killed by bears.
Then there is the danger of being shot by somebody in your own hunting party or from another hunting party...
Being safe is a very multi-faceted concept that goes well beyond some of our over simplifications. This is especially true out in the bush where medical help isn't readily available.
"If you look through your scope and see your shoe, aim higher."
-- said to me by my 11 year old daughter before going out for hogs 8/13/2011