Hate to bust your environmentalist bubble bud, but elephants are no longer endangered. Protectionist programs and the setting aside of parks free from human predation have produced a dramatic upswing in elephant numbers. Indeed, their numbers are increasing at such a rate they are threatening their own habitats, stripping and killing trees, and raiding the farms and villages of African tribes that live in close proximity to them.
Consequently, the number of humans being killed in confrontations with elephants is also going up dramatically.
The move to protect elephants from all human predation may be backfiring in that regard, for they appear to be losing their natural fear of human beings.
By the by, unless an elephant is enraged and already in the act of charging they are not all that hard to kill, at least according to some of the more experienced big-game hunters of the twentiety century. Karamajo Bell killed scores of them with nothing more powerful than a 6.5 Mannlicher with a 160 grain solid projectile traveling at a mere 2400 feet per second. All brain shots.