Christian Science Monitor: Officials at the Sequoia & Kings Canyon National Park in California adopted an unusual wildfire policy four decades ago: When possible, they’d let fire be fire. If a blaze didn’t threaten homes or people, park officials would let it burn. The idea was to let natural processes take over and prevent wildland from becoming too overgrown and vulnerable to a conflagration. Forty years on, this strategy – known as “fire management” – is in place in wilderness areas …