Since you asked...
Organizations dedicated to pushing the "theory" of Intelligent Design have been making a number of efforts to include their own shoddy, creationist pseudo-science in school curricula. Given the utter failure of intelligent design to win acceptance among the majority of scientists and educators, advocates of this perspective (or should I say opponents of evolution?) have resorted to legal action and political muscle to accomplish what their poor scholarship could not. Spirited defense of evolution is clearly necessary if we are to thwart these ongoing fundamentalist shenanigans.
And let's not forget that John Scopes was found guilty, and fined, in the famous Scopes Monkey Trial. The law banning the teaching of evolution wasn't struck down by the Supreme Court until forty-three years after the Scopes trial. Despite its overwhelming scientific support, Evolution is nowhere near secure from political attack.
And, so, I once more say "Bravo" to National Geographic for taking a public stand in favor of a theory that is scientifically-secure, but politically embattled.