[update: it's got the Beeb's usual pigheadedness when it comes to reporting on language issues:
Some people in the extreme "nature" camp believe that grammar is essentially hard-wired in the brain, while those in the extreme "nurture" camp think language has no innate basis and is just culturally transmitted.This is so not a good way to frame the "debate". There isn't a debate, you idiots. Nobody's in either of those camps; they're straw men! ... I wish they'd assign somebody who'd taken a class in linguistics -- or rhetoric -- to do this reporting.
It has been difficult to clear up the argument,...
I might add that the Wikipedia article is not at all guilty of this pitiful attempt to sex up the story through weak rhetoric (false dichotomy) and weak reporting "some people believe". Another victory for the worker's paradise of information. ]