We will have more to say about cars in India.  Michael made brief mention here, but the environmental questions of an emerging middle class in countries as populous as India, most of whom see cars as a definition of progress and success (thank you Mr. Ford and Engine Charlie!), are blog-cloggingly numerous.  So we will tread only occasionally into this terrain.  And when we do say more, we will focus primarily on one form of treachery: the horn and its contribution to noise pollution.  Reading Mr. Egan’s account of a unusual moment of mass inspiration in an erstwhile car-struck city reminds us of our need to elaborate on our own plans for inspiring tranquility in the land of please-honk…